Word
Радиус экватора равняется приблизительно шести тысячам трёмстам семидесяти одному километру.
Meaning
The radius of the equator equals approximately six thousand three hundred seventy-one kilometers.
Part of speech
sentence
Pronunciation
Course
Breakdown of Радиус экватора равняется приблизительно шести тысячам трёмстам семидесяти одному километру.
один
one
шесть
six
километр
kilometre
семьдесят
seventy
Questions & Answers about Радиус экватора равняется приблизительно шести тысячам трёмстам семидесяти одному километру.
Why is the entire number and the word for kilometers in the Dative case?
The verb равняться (to equal) requires its object to be in the Dative case. Therefore, every individual word in the compound number 6,371, as well as the noun it modifies, must decline into the Dative.
Why is it шести тысячам with a plural ending for thousand?
In Russian, every word in a compound number declines. The number 6 (шесть) becomes шести in the Dative. Because тысяча (thousand) grammatically functions as a noun, and there are six of them, it declines into the Dative plural (тысячам).
How do the internal parts of трёмстам and семидесяти decline?
For compound numbers like 300 and 70, both halves of the word decline. Триста (300) becomes трёмстам in the Dative (think of it as "to three hundreds"). Семьдесят (70) becomes семидесяти, where both the "seven" root and the "ten" root take the Dative ending -и.
Why is the noun километру singular when the number is over six thousand?
The grammatical case and number of the noun are dictated entirely by the very last word of the compound number. Because 6,371 ends in 1 (один), the noun pairs with it. Since the whole phrase is in the Dative, we use the Dative singular одному километру.