Question

A man that weighs 76 kilograms on Mars would weigh 228 kilograms on Neptune. If a certain object weighs 57 grams on Neptune, how much would it weigh on Mars?

Answer 1

Solution

For this case we can do the following proportion:

$\frac{76\operatorname{kg}}{228\operatorname{kg}}=\frac{x}{0.057\operatorname{kg}}$

Solving for x

$x=0.057\cdot\frac{76}{228}=0.019$

Then the answer would be:

0.019 kg * (1000gr/1 kg)= 19 grams