Finding the Fourth Proportional to 131,760,963.47, 181,830,125.97 and 73,032,451.92
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Solution
The fourth proportional to 131,760,963.47, 181,830,125.97 and 73,032,451.92 is: 100,784,781.65
Step by Step Solution
- Step 1: Write the proportion equation
131,760,963.47 : 181,830,125.97 = 73,032,451.92 : x - Step 2: Convert to fraction form
131,760,963.47/181,830,125.97 = 73,032,451.92/x - Step 3: Cross multiply
131,760,963.47x = 181,830,125.97 × 73,032,451.92 - Step 4: Simplify right side
131,760,963.47x = 13,279,499,932,511,568 - Step 5: Solve for x
x = 13,279,499,932,511,568/131,760,963.47 - Step 6: Final answer
x = 100,784,781.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.