Home / 81,288,423.60-121,898,257.92-32,753,245.92

Finding the Fourth Proportional to 81,288,423.60, 121,898,257.92 and 32,753,245.92

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Solution

The fourth proportional to 81,288,423.60, 121,898,257.92 and 32,753,245.92 is: 49,116,017.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,288,423.60 : 121,898,257.92 = 32,753,245.92 : x
  2. Step 2: Convert to fraction form
    81,288,423.60/121,898,257.92 = 32,753,245.92/x
  3. Step 3: Cross multiply
    81,288,423.60x = 121,898,257.92 × 32,753,245.92
  4. Step 4: Simplify right side
    81,288,423.60x = 3,992,563,618,873,348
  5. Step 5: Solve for x
    x = 3,992,563,618,873,348/81,288,423.60
  6. Step 6: Final answer
    x = 49,116,017.29

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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.