Home / 21,206,179.29-29,266,902.72-12,838,161.42

Finding the Fourth Proportional to 21,206,179.29, 29,266,902.72 and 12,838,161.42

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Solution

The fourth proportional to 21,206,179.29, 29,266,902.72 and 12,838,161.42 is: 17,718,100.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,206,179.29 : 29,266,902.72 = 12,838,161.42 : x
  2. Step 2: Convert to fraction form
    21,206,179.29/29,266,902.72 = 12,838,161.42/x
  3. Step 3: Cross multiply
    21,206,179.29x = 29,266,902.72 × 12,838,161.42
  4. Step 4: Simplify right side
    21,206,179.29x = 375,733,221,382,797.06
  5. Step 5: Solve for x
    x = 375,733,221,382,797.06/21,206,179.29
  6. Step 6: Final answer
    x = 17,718,100.76

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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.