In order to rank these measurements correctly, it would be useful to convert the values to the same units. For this case, we convert them to meters. We do as follows:
1mi = 1609.34 m
10m = 10 m
1x10^11nm = 100 m
50in = 1.27 m
Therefore, the correct ranking would be as follows:
1mi, 1x10^11nm, 10m, and 50in.
