Home / 18,372,863.47-27,561,012-5,419,026.76

Finding the Fourth Proportional to 18,372,863.47, 27,561,012 and 5,419,026.76

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Solution

The fourth proportional to 18,372,863.47, 27,561,012 and 5,419,026.76 is: 8,129,046.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,372,863.47 : 27,561,012 = 5,419,026.76 : x
  2. Step 2: Convert to fraction form
    18,372,863.47/27,561,012 = 5,419,026.76/x
  3. Step 3: Cross multiply
    18,372,863.47x = 27,561,012 × 5,419,026.76
  4. Step 4: Simplify right side
    18,372,863.47x = 149,353,861,560,681.12
  5. Step 5: Solve for x
    x = 149,353,861,560,681.12/18,372,863.47
  6. Step 6: Final answer
    x = 8,129,046.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.