Home / 18,469,695.50-25,481,965.86-11,951,571.64

Finding the Fourth Proportional to 18,469,695.50, 25,481,965.86 and 11,951,571.64

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Solution

The fourth proportional to 18,469,695.50, 25,481,965.86 and 11,951,571.64 is: 16,489,147.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,469,695.50 : 25,481,965.86 = 11,951,571.64 : x
  2. Step 2: Convert to fraction form
    18,469,695.50/25,481,965.86 = 11,951,571.64/x
  3. Step 3: Cross multiply
    18,469,695.50x = 25,481,965.86 × 11,951,571.64
  4. Step 4: Simplify right side
    18,469,695.50x = 304,549,540,503,824.19
  5. Step 5: Solve for x
    x = 304,549,540,503,824.19/18,469,695.50
  6. Step 6: Final answer
    x = 16,489,147.89

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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.