The pattern here is a numerical value is multiplied by 10 in sequential order to get the next value.
a,b,c,d where
a= 0.03
10a=b
10(0.03)= 0.3
b=0.3
10b=c
10(0.3)= 3
c=3
10c=d
10(3)= 30
d=30
Make sense? Feel free to ask for clarification if you are still having trouble!