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Finding the Fourth Proportional to 8,361,935.20, 12,542,902.80 and 6,472,367.20

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Solution

The fourth proportional to 8,361,935.20, 12,542,902.80 and 6,472,367.20 is: 9,708,550.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,361,935.20 : 12,542,902.80 = 6,472,367.20 : x
  2. Step 2: Convert to fraction form
    8,361,935.20/12,542,902.80 = 6,472,367.20/x
  3. Step 3: Cross multiply
    8,361,935.20x = 12,542,902.80 × 6,472,367.20
  4. Step 4: Simplify right side
    8,361,935.20x = 81,182,272,675,508.17
  5. Step 5: Solve for x
    x = 81,182,272,675,508.17/8,361,935.20
  6. Step 6: Final answer
    x = 9,708,550.80

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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.