Home / 521,551,569.90-782,327,354.85-157,998,686.70

Finding the Fourth Proportional to 521,551,569.90, 782,327,354.85 and 157,998,686.70

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Solution

The fourth proportional to 521,551,569.90, 782,327,354.85 and 157,998,686.70 is: 236,998,030.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,551,569.90 : 782,327,354.85 = 157,998,686.70 : x
  2. Step 2: Convert to fraction form
    521,551,569.90/782,327,354.85 = 157,998,686.70/x
  3. Step 3: Cross multiply
    521,551,569.90x = 782,327,354.85 × 157,998,686.70
  4. Step 4: Simplify right side
    521,551,569.90x = 123,606,694,635,784,864
  5. Step 5: Solve for x
    x = 123,606,694,635,784,864/521,551,569.90
  6. Step 6: Final answer
    x = 236,998,030.05

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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.