Home / 20,188,780.66-27,860,375.28-11,021,423.41

Finding the Fourth Proportional to 20,188,780.66, 27,860,375.28 and 11,021,423.41

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Solution

The fourth proportional to 20,188,780.66, 27,860,375.28 and 11,021,423.41 is: 15,209,486.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,188,780.66 : 27,860,375.28 = 11,021,423.41 : x
  2. Step 2: Convert to fraction form
    20,188,780.66/27,860,375.28 = 11,021,423.41/x
  3. Step 3: Cross multiply
    20,188,780.66x = 27,860,375.28 × 11,021,423.41
  4. Step 4: Simplify right side
    20,188,780.66x = 307,060,992,322,377.31
  5. Step 5: Solve for x
    x = 307,060,992,322,377.31/20,188,780.66
  6. Step 6: Final answer
    x = 15,209,486.77

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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.