Home / 20,188,839.56-27,860,456.87-11,021,482.31

Finding the Fourth Proportional to 20,188,839.56, 27,860,456.87 and 11,021,482.31

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Solution

The fourth proportional to 20,188,839.56, 27,860,456.87 and 11,021,482.31 is: 15,209,568.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,188,839.56 : 27,860,456.87 = 11,021,482.31 : x
  2. Step 2: Convert to fraction form
    20,188,839.56/27,860,456.87 = 11,021,482.31/x
  3. Step 3: Cross multiply
    20,188,839.56x = 27,860,456.87 × 11,021,482.31
  4. Step 4: Simplify right side
    20,188,839.56x = 307,063,532,486,115.56
  5. Step 5: Solve for x
    x = 307,063,532,486,115.56/20,188,839.56
  6. Step 6: Final answer
    x = 15,209,568.22

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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.