Home / 18,513,625.34-27,781,788.78-8,287,132

Finding the Fourth Proportional to 18,513,625.34, 27,781,788.78 and 8,287,132

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Solution

The fourth proportional to 18,513,625.34, 27,781,788.78 and 8,287,132 is: 12,435,778.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,513,625.34 : 27,781,788.78 = 8,287,132 : x
  2. Step 2: Convert to fraction form
    18,513,625.34/27,781,788.78 = 8,287,132/x
  3. Step 3: Cross multiply
    18,513,625.34x = 27,781,788.78 × 8,287,132
  4. Step 4: Simplify right side
    18,513,625.34x = 230,231,350,815,978.97
  5. Step 5: Solve for x
    x = 230,231,350,815,978.97/18,513,625.34
  6. Step 6: Final answer
    x = 12,435,778.87

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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.