Home / 56,918,023.20-78,546,854.88-30,812,521.92

Finding the Fourth Proportional to 56,918,023.20, 78,546,854.88 and 30,812,521.92

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Solution

The fourth proportional to 56,918,023.20, 78,546,854.88 and 30,812,521.92 is: 42,521,270.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,918,023.20 : 78,546,854.88 = 30,812,521.92 : x
  2. Step 2: Convert to fraction form
    56,918,023.20/78,546,854.88 = 30,812,521.92/x
  3. Step 3: Cross multiply
    56,918,023.20x = 78,546,854.88 × 30,812,521.92
  4. Step 4: Simplify right side
    56,918,023.20x = 2,420,226,687,737,059
  5. Step 5: Solve for x
    x = 2,420,226,687,737,059/56,918,023.20
  6. Step 6: Final answer
    x = 42,521,270.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.