Home / 28,520,189.31-39,359,974.11-15,962,499.90

Finding the Fourth Proportional to 28,520,189.31, 39,359,974.11 and 15,962,499.90

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Solution

The fourth proportional to 28,520,189.31, 39,359,974.11 and 15,962,499.90 is: 22,029,432.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,520,189.31 : 39,359,974.11 = 15,962,499.90 : x
  2. Step 2: Convert to fraction form
    28,520,189.31/39,359,974.11 = 15,962,499.90/x
  3. Step 3: Cross multiply
    28,520,189.31x = 39,359,974.11 × 15,962,499.90
  4. Step 4: Simplify right side
    28,520,189.31x = 628,283,582,794,877.62
  5. Step 5: Solve for x
    x = 628,283,582,794,877.62/28,520,189.31
  6. Step 6: Final answer
    x = 22,029,432.41

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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.