Home / 15,147,972.77-20,904,279.14-8,272,454.63

Finding the Fourth Proportional to 15,147,972.77, 20,904,279.14 and 8,272,454.63

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Solution

The fourth proportional to 15,147,972.77, 20,904,279.14 and 8,272,454.63 is: 11,416,029.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,147,972.77 : 20,904,279.14 = 8,272,454.63 : x
  2. Step 2: Convert to fraction form
    15,147,972.77/20,904,279.14 = 8,272,454.63/x
  3. Step 3: Cross multiply
    15,147,972.77x = 20,904,279.14 × 8,272,454.63
  4. Step 4: Simplify right side
    15,147,972.77x = 172,929,700,717,143.16
  5. Step 5: Solve for x
    x = 172,929,700,717,143.16/15,147,972.77
  6. Step 6: Final answer
    x = 11,416,029.28

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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.