# Question #1e496

##### 1 Answer
Feb 13, 2017

If we allow ourselves a small amount of rounding, Planet A has about 560 thousand times greater mass than Planet B.

#### Explanation:

${m}_{a} / {m}_{b} = \frac{5 \cdot {10}^{29}}{9 \cdot {10}^{23}} = \frac{5 \cdot {10}^{26}}{9} = 555 , 555. \dot{5} \approx 560 , 000$

If we allow ourselves a bit of rounding, Planet A has about 560 thousand times greater mass than Planet B.