Suppose that the volumes of four stars in the Milky Way are 2.7 × 10^8 km3 , 6.9 × 10^4 km^3 , 2.2 × 10^12 km^3 , and 4.9 × 10^12 km^3 . What is the order of the stars from least to greatest volume?
The stars in order from least to greatest volume are:
1. 6.9 × 10^4 km^3
2. 2.7 × 10^8 km^3
3. 2.2 × 10^12 km^3
4. 4.9 × 10^12 km^3