Finding the Fourth Proportional to 138,475,357.80, 207,713,036.70 and 132,098,065.80
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Solution
The fourth proportional to 138,475,357.80, 207,713,036.70 and 132,098,065.80 is: 198,147,098.70
Step by Step Solution
- Step 1: Write the proportion equation
138,475,357.80 : 207,713,036.70 = 132,098,065.80 : x - Step 2: Convert to fraction form
138,475,357.80/207,713,036.70 = 132,098,065.80/x - Step 3: Cross multiply
138,475,357.80x = 207,713,036.70 × 132,098,065.80 - Step 4: Simplify right side
138,475,357.80x = 27,438,490,389,514,412 - Step 5: Solve for x
x = 27,438,490,389,514,412/138,475,357.80 - Step 6: Final answer
x = 198,147,098.70
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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.