Home / 8,083,618.80-12,125,428.20-7,605,321.90

Finding the Fourth Proportional to 8,083,618.80, 12,125,428.20 and 7,605,321.90

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Solution

The fourth proportional to 8,083,618.80, 12,125,428.20 and 7,605,321.90 is: 11,407,982.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,083,618.80 : 12,125,428.20 = 7,605,321.90 : x
  2. Step 2: Convert to fraction form
    8,083,618.80/12,125,428.20 = 7,605,321.90/x
  3. Step 3: Cross multiply
    8,083,618.80x = 12,125,428.20 × 7,605,321.90
  4. Step 4: Simplify right side
    8,083,618.80x = 92,217,784,636,337.58
  5. Step 5: Solve for x
    x = 92,217,784,636,337.58/8,083,618.80
  6. Step 6: Final answer
    x = 11,407,982.85

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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.