Home / 15,218,163.30-21,001,870.17-8,342,935.14

Finding the Fourth Proportional to 15,218,163.30, 21,001,870.17 and 8,342,935.14

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Solution

The fourth proportional to 15,218,163.30, 21,001,870.17 and 8,342,935.14 is: 11,513,691.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,218,163.30 : 21,001,870.17 = 8,342,935.14 : x
  2. Step 2: Convert to fraction form
    15,218,163.30/21,001,870.17 = 8,342,935.14/x
  3. Step 3: Cross multiply
    15,218,163.30x = 21,001,870.17 × 8,342,935.14
  4. Step 4: Simplify right side
    15,218,163.30x = 175,217,240,647,010.78
  5. Step 5: Solve for x
    x = 175,217,240,647,010.78/15,218,163.30
  6. Step 6: Final answer
    x = 11,513,691.71

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Double scale
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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.