Home / 521,520,780,003.40-782,281,170,005.10-501,684,850,966.60

Finding the Fourth Proportional to 521,520,780,003.40, 782,281,170,005.10 and 501,684,850,966.60

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Solution

The fourth proportional to 521,520,780,003.40, 782,281,170,005.10 and 501,684,850,966.60 is: 752,527,276,449.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,520,780,003.40 : 782,281,170,005.10 = 501,684,850,966.60 : x
  2. Step 2: Convert to fraction form
    521,520,780,003.40/782,281,170,005.10 = 501,684,850,966.60/x
  3. Step 3: Cross multiply
    521,520,780,003.40x = 782,281,170,005.10 × 501,684,850,966.60
  4. Step 4: Simplify right side
    521,520,780,003.40x = 392,458,612,187,986,013,454,336
  5. Step 5: Solve for x
    x = 392,458,612,187,986,013,454,336/521,520,780,003.40
  6. Step 6: Final answer
    x = 752,527,276,449.90

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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.