Home / 278,291,292.60-417,436,938.90-252,761,129.40

Finding the Fourth Proportional to 278,291,292.60, 417,436,938.90 and 252,761,129.40

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Solution

The fourth proportional to 278,291,292.60, 417,436,938.90 and 252,761,129.40 is: 379,141,694.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,291,292.60 : 417,436,938.90 = 252,761,129.40 : x
  2. Step 2: Convert to fraction form
    278,291,292.60/417,436,938.90 = 252,761,129.40/x
  3. Step 3: Cross multiply
    278,291,292.60x = 417,436,938.90 × 252,761,129.40
  4. Step 4: Simplify right side
    278,291,292.60x = 105,511,832,129,642,784
  5. Step 5: Solve for x
    x = 105,511,832,129,642,784/278,291,292.60
  6. Step 6: Final answer
    x = 379,141,694.10

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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.