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Finding the Fourth Proportional to 18,109,046.11, 27,174,742.06 and 8,391,847.88

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Solution

The fourth proportional to 18,109,046.11, 27,174,742.06 and 8,391,847.88 is: 12,592,949.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,109,046.11 : 27,174,742.06 = 8,391,847.88 : x
  2. Step 2: Convert to fraction form
    18,109,046.11/27,174,742.06 = 8,391,847.88/x
  3. Step 3: Cross multiply
    18,109,046.11x = 27,174,742.06 × 8,391,847.88
  4. Step 4: Simplify right side
    18,109,046.11x = 228,046,301,545,757.84
  5. Step 5: Solve for x
    x = 228,046,301,545,757.84/18,109,046.11
  6. Step 6: Final answer
    x = 12,592,949.41

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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.