Finding the Fourth Proportional to 86,488,514,694.48, 129,685,478,553.09 and 68,675,319,759.66
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Solution
The fourth proportional to 86,488,514,694.48, 129,685,478,553.09 and 68,675,319,759.66 is: 102,975,426,728.96
Step by Step Solution
- Step 1: Write the proportion equation
86,488,514,694.48 : 129,685,478,553.09 = 68,675,319,759.66 : x - Step 2: Convert to fraction form
86,488,514,694.48/129,685,478,553.09 = 68,675,319,759.66/x - Step 3: Cross multiply
86,488,514,694.48x = 129,685,478,553.09 × 68,675,319,759.66 - Step 4: Simplify right side
86,488,514,694.48x = 8,906,191,707,817,984,917,504 - Step 5: Solve for x
x = 8,906,191,707,817,984,917,504/86,488,514,694.48 - Step 6: Final answer
x = 102,975,426,728.96
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.