[tex]10 \% = \frac{10}{100}= \frac{1}{10} .\\ \\ \frac{1}{10} \cdot \frac{1}{10} \cdot ... \cdot \frac{1}{10} \cdot x=10^{48} \\ \\ \frac{1}{10^{51}} \cdot x=10^{48} \Rightarrow x= 10^{48} \cdot 10 ^{51}=10^{99}. \\ \\ \underline{Solutie}:x=10^{99}. [/tex]