Home / 21,206,180.79-29,266,904.79-12,838,162.92

Finding the Fourth Proportional to 21,206,180.79, 29,266,904.79 and 12,838,162.92

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Solution

The fourth proportional to 21,206,180.79, 29,266,904.79 and 12,838,162.92 is: 17,718,102.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,206,180.79 : 29,266,904.79 = 12,838,162.92 : x
  2. Step 2: Convert to fraction form
    21,206,180.79/29,266,904.79 = 12,838,162.92/x
  3. Step 3: Cross multiply
    21,206,180.79x = 29,266,904.79 × 12,838,162.92
  4. Step 4: Simplify right side
    21,206,180.79x = 375,733,291,858,148.38
  5. Step 5: Solve for x
    x = 375,733,291,858,148.38/21,206,180.79
  6. Step 6: Final answer
    x = 17,718,102.83

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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.