\[b_{1} = \frac{1}{9};\ \ b_{2};\ \ b_{3};\ \ b_{4};\ \ b_{5};\ \ b_{6} =\]
\[= 27.\]
\[b_{6} = b_{1} \cdot q^{5}\]
\[27 = \frac{1}{9} \cdot q^{5}\]
\[q^{5} = 3^{3} \cdot 3^{2} = 3^{5}\]
\[q = 3.\]
\[b_{2} = \frac{1}{9} \cdot 3 = \frac{1}{3};\]
\[b_{3} = \frac{1}{3} \cdot 3 = 1;\]
\[b_{4} = 1 \cdot 3 = 3;\]
\[b_{5} = 3 \cdot 3 = 9.\]