Home / 20,542,657.60-28,348,518.90-11,375,103.52

Finding the Fourth Proportional to 20,542,657.60, 28,348,518.90 and 11,375,103.52

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Solution

The fourth proportional to 20,542,657.60, 28,348,518.90 and 11,375,103.52 is: 15,697,449.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,542,657.60 : 28,348,518.90 = 11,375,103.52 : x
  2. Step 2: Convert to fraction form
    20,542,657.60/28,348,518.90 = 11,375,103.52/x
  3. Step 3: Cross multiply
    20,542,657.60x = 28,348,518.90 × 11,375,103.52
  4. Step 4: Simplify right side
    20,542,657.60x = 322,467,337,126,176.50
  5. Step 5: Solve for x
    x = 322,467,337,126,176.50/20,542,657.60
  6. Step 6: Final answer
    x = 15,697,449.83

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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.