Home / 28,425,372.20-39,227,131.04-15,372,630.88

Finding the Fourth Proportional to 28,425,372.20, 39,227,131.04 and 15,372,630.88

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Solution

The fourth proportional to 28,425,372.20, 39,227,131.04 and 15,372,630.88 is: 21,214,294.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,425,372.20 : 39,227,131.04 = 15,372,630.88 : x
  2. Step 2: Convert to fraction form
    28,425,372.20/39,227,131.04 = 15,372,630.88/x
  3. Step 3: Cross multiply
    28,425,372.20x = 39,227,131.04 × 15,372,630.88
  4. Step 4: Simplify right side
    28,425,372.20x = 603,024,205,959,310.50
  5. Step 5: Solve for x
    x = 603,024,205,959,310.50/28,425,372.20
  6. Step 6: Final answer
    x = 21,214,294.11

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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.