Home / 15,110,144.87-20,851,391.52-8,234,479.31

Finding the Fourth Proportional to 15,110,144.87, 20,851,391.52 and 8,234,479.31

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Solution

The fourth proportional to 15,110,144.87, 20,851,391.52 and 8,234,479.31 is: 11,363,249.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,110,144.87 : 20,851,391.52 = 8,234,479.31 : x
  2. Step 2: Convert to fraction form
    15,110,144.87/20,851,391.52 = 8,234,479.31/x
  3. Step 3: Cross multiply
    15,110,144.87x = 20,851,391.52 × 8,234,479.31
  4. Step 4: Simplify right side
    15,110,144.87x = 171,700,351,951,892.47
  5. Step 5: Solve for x
    x = 171,700,351,951,892.47/15,110,144.87
  6. Step 6: Final answer
    x = 11,363,249.89

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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.