Home / 148,861,514.88-205,398,781.20-86,969,900.88

Finding the Fourth Proportional to 148,861,514.88, 205,398,781.20 and 86,969,900.88

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Solution

The fourth proportional to 148,861,514.88, 205,398,781.20 and 86,969,900.88 is: 120,000,872.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,861,514.88 : 205,398,781.20 = 86,969,900.88 : x
  2. Step 2: Convert to fraction form
    148,861,514.88/205,398,781.20 = 86,969,900.88/x
  3. Step 3: Cross multiply
    148,861,514.88x = 205,398,781.20 × 86,969,900.88
  4. Step 4: Simplify right side
    148,861,514.88x = 17,863,511,641,836,806
  5. Step 5: Solve for x
    x = 17,863,511,641,836,806/148,861,514.88
  6. Step 6: Final answer
    x = 120,000,872.33

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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.