9. As shown in the figure, in parallelogram $A B C D$, $E, F, G$ are points on $A B, D C, D A$ respectively, and $A E=D F=\frac{1}{3} A B=3$, the area of $\triangle G E C$ is 30, and the area of $\triangle G F B$ is 24, then the area of parallelogram $A B C D$ is . $\qquad$
$81$