Finding the Fourth Proportional to 215,982,689.27, 298,055,918.62 and 121,916,635.97
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Solution
The fourth proportional to 215,982,689.27, 298,055,918.62 and 121,916,635.97 is: 168,244,848.94
Step by Step Solution
- Step 1: Write the proportion equation
215,982,689.27 : 298,055,918.62 = 121,916,635.97 : x - Step 2: Convert to fraction form
215,982,689.27/298,055,918.62 = 121,916,635.97/x - Step 3: Cross multiply
215,982,689.27x = 298,055,918.62 × 121,916,635.97 - Step 4: Simplify right side
215,982,689.27x = 36,337,974,929,098,488 - Step 5: Solve for x
x = 36,337,974,929,098,488/215,982,689.27 - Step 6: Final answer
x = 168,244,848.94
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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.