Let $P=\begin{bmatrix}1&0&0\\[2pt]3&1&0\\[2pt]9&3&1\end{bmatrix}$ and $Q=[q_{ij}]$ be two $3\times 3$ matrices such that $Q-P^{5}=I_{3}$. Then $\displaystyle \frac{2q_{11}+q_{31}}{q_{32}}$ is equal to: