Home / 20,970,331.59-28,924,150.53-13,997,493.54

Finding the Fourth Proportional to 20,970,331.59, 28,924,150.53 and 13,997,493.54

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Solution

The fourth proportional to 20,970,331.59, 28,924,150.53 and 13,997,493.54 is: 19,306,590.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,970,331.59 : 28,924,150.53 = 13,997,493.54 : x
  2. Step 2: Convert to fraction form
    20,970,331.59/28,924,150.53 = 13,997,493.54/x
  3. Step 3: Cross multiply
    20,970,331.59x = 28,924,150.53 × 13,997,493.54
  4. Step 4: Simplify right side
    20,970,331.59x = 404,865,610,193,662.56
  5. Step 5: Solve for x
    x = 404,865,610,193,662.56/20,970,331.59
  6. Step 6: Final answer
    x = 19,306,590.76

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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.