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Finding the Third Proportional to 19,920,892 and 29,311,698

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Solution

The third proportional to 19,920,892 and 29,311,698 is: 43,129,375.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,920,892 : 29,311,698 = 29,311,698 : x
  2. Step 2: Convert to fraction form
    19,920,892/29,311,698 = 29,311,698/x
  3. Step 3: Cross multiply
    19,920,892x = 29,311,698 × 29,311,698
  4. Step 4: Simplify right side
    19,920,892x = 859,175,639,643,204
  5. Step 5: Solve for x
    x = 859,175,639,643,204/19,920,892
  6. Step 6: Final answer
    x = 43,129,375.92

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.