Find the sum of the first 8 terms of the following sequence. Round to the nearest hundredth if necessary.
26, comma, 130, comma, 650, comma, point, point, .
26,130,650,...
The common ratio in this geometric sequence is 5.
So, the sum of the first 8 terms can be calculated as:
\[ \frac{26(1-5^8)}{1-5} = \frac{26(1-390625)}{-4} = \frac{26(-390624)}{-4} = \frac{-10156224}{-4} = 2539056 \]
Therefore, the sum of the first 8 terms of the sequence is 2539056.