Home / 278,291,287.10-417,436,930.65-252,761,123.90

Finding the Fourth Proportional to 278,291,287.10, 417,436,930.65 and 252,761,123.90

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Solution

The fourth proportional to 278,291,287.10, 417,436,930.65 and 252,761,123.90 is: 379,141,685.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,291,287.10 : 417,436,930.65 = 252,761,123.90 : x
  2. Step 2: Convert to fraction form
    278,291,287.10/417,436,930.65 = 252,761,123.90/x
  3. Step 3: Cross multiply
    278,291,287.10x = 417,436,930.65 × 252,761,123.90
  4. Step 4: Simplify right side
    278,291,287.10x = 105,511,827,748,460,352
  5. Step 5: Solve for x
    x = 105,511,827,748,460,352/278,291,287.10
  6. Step 6: Final answer
    x = 379,141,685.85

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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.