Home / 20,188,839.06-27,860,456.17-11,021,481.81

Finding the Fourth Proportional to 20,188,839.06, 27,860,456.17 and 11,021,481.81

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Solution

The fourth proportional to 20,188,839.06, 27,860,456.17 and 11,021,481.81 is: 15,209,567.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,188,839.06 : 27,860,456.17 = 11,021,481.81 : x
  2. Step 2: Convert to fraction form
    20,188,839.06/27,860,456.17 = 11,021,481.81/x
  3. Step 3: Cross multiply
    20,188,839.06x = 27,860,456.17 × 11,021,481.81
  4. Step 4: Simplify right side
    20,188,839.06x = 307,063,510,940,737.56
  5. Step 5: Solve for x
    x = 307,063,510,940,737.56/20,188,839.06
  6. Step 6: Final answer
    x = 15,209,567.53

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1.5x scale

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.