Answer:
Since 1 milligram is
or
kilogram we can then use ratio to solve.
Step-by-step explanation:
#1)
1 :
x : 1.989*10^27
Cross multiply to get:
x = 1.989*10^27
Divide both sides by
to get:
x =
which is going to give you 1.989*10^33
Therefore 1.989*10^27 kilograms = 1.989*10^33 milligrams
#2) we can use the same procedure as (#1)
1 :
1.989*10^33 : x
Cross multiply to get:
1.989*10^27 = x
Therefore 1.989*10^27 milligrams = 1.989*10^33 kilograms
Note: I'm not really sure if this is what you wanted, but hope I was able to help.