Home / 20,970,239.75-28,924,023.67-13,997,401.66

Finding the Fourth Proportional to 20,970,239.75, 28,924,023.67 and 13,997,401.66

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Solution

The fourth proportional to 20,970,239.75, 28,924,023.67 and 13,997,401.66 is: 19,306,463.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,970,239.75 : 28,924,023.67 = 13,997,401.66 : x
  2. Step 2: Convert to fraction form
    20,970,239.75/28,924,023.67 = 13,997,401.66/x
  3. Step 3: Cross multiply
    20,970,239.75x = 28,924,023.67 × 13,997,401.66
  4. Step 4: Simplify right side
    20,970,239.75x = 404,861,176,932,337.31
  5. Step 5: Solve for x
    x = 404,861,176,932,337.31/20,970,239.75
  6. Step 6: Final answer
    x = 19,306,463.91

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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.