Home / 521,451,061.20-782,281,567.80-152,985,301.20

Finding the Fourth Proportional to 521,451,061.20, 782,281,567.80 and 152,985,301.20

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Solution

The fourth proportional to 521,451,061.20, 782,281,567.80 and 152,985,301.20 is: 229,508,750.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,451,061.20 : 782,281,567.80 = 152,985,301.20 : x
  2. Step 2: Convert to fraction form
    521,451,061.20/782,281,567.80 = 152,985,301.20/x
  3. Step 3: Cross multiply
    521,451,061.20x = 782,281,567.80 × 152,985,301.20
  4. Step 4: Simplify right side
    521,451,061.20x = 119,677,581,273,091,200
  5. Step 5: Solve for x
    x = 119,677,581,273,091,200/521,451,061.20
  6. Step 6: Final answer
    x = 229,508,750.06

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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.