Home / 6,420,591.92-8,860,414.65-3,519,920.54

Finding the Fourth Proportional to 6,420,591.92, 8,860,414.65 and 3,519,920.54

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Solution

The fourth proportional to 6,420,591.92, 8,860,414.65 and 3,519,920.54 is: 4,857,489.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420,591.92 : 8,860,414.65 = 3,519,920.54 : x
  2. Step 2: Convert to fraction form
    6,420,591.92/8,860,414.65 = 3,519,920.54/x
  3. Step 3: Cross multiply
    6,420,591.92x = 8,860,414.65 × 3,519,920.54
  4. Step 4: Simplify right side
    6,420,591.92x = 31,187,955,519,451.91
  5. Step 5: Solve for x
    x = 31,187,955,519,451.91/6,420,591.92
  6. Step 6: Final answer
    x = 4,857,489.14

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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.