Question

Verify whether the following numbers are in proportion: 7, 42, 13, 78

Answer 1

Ans: Yes, numbers are in proportion.
42:13 :: 78:7

Hope it helps...!!

Answer 2

Verify whether the following numbers are in proportion: 7, 42, 13, 78

Answer : The Given numbers are in proportion.

Explanation :-

Given :

7, 42, 13, 78

Write the numbers as Ratio.

7 : 42 : : 13 : 78

7and 78 are Extreme Terms

42 and 13 are Middle Terms.

Product of Extreme Terms = Product of middle terms.

7 : 42 : : 13 : 78

7 x 78 = 42 x 13

546 = 546.

Product of Extreme Terms is equal to the Product of middle terms. Hence, They are in proportion.