Question

What is the ratio of our solar system's radius to the Milky Way's radius given that the distance from Pluto to the sun is 5.9 * 10^12 meters; and the Milky Way's disk radius is 3.9 * 10^20 meters. Round the coefficient to the nearest tenth.

Answer 1

Just divide the sun-pluto distance by the milky way radius and you get the following ratio:

6.6 x 10^7 : 1