Home / 15,490,238.55-21,375,869.70-8,520,473.85

Finding the Fourth Proportional to 15,490,238.55, 21,375,869.70 and 8,520,473.85

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Solution

The fourth proportional to 15,490,238.55, 21,375,869.70 and 8,520,473.85 is: 11,757,891.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,490,238.55 : 21,375,869.70 = 8,520,473.85 : x
  2. Step 2: Convert to fraction form
    15,490,238.55/21,375,869.70 = 8,520,473.85/x
  3. Step 3: Cross multiply
    15,490,238.55x = 21,375,869.70 × 8,520,473.85
  4. Step 4: Simplify right side
    15,490,238.55x = 182,132,538,799,857.34
  5. Step 5: Solve for x
    x = 182,132,538,799,857.34/15,490,238.55
  6. Step 6: Final answer
    x = 11,757,891.15

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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.