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Finding the Third Proportional to 9,160,920 and 19,900,368

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Solution

The third proportional to 9,160,920 and 19,900,368 is: 43,229,789.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,160,920 : 19,900,368 = 19,900,368 : x
  2. Step 2: Convert to fraction form
    9,160,920/19,900,368 = 19,900,368/x
  3. Step 3: Cross multiply
    9,160,920x = 19,900,368 × 19,900,368
  4. Step 4: Simplify right side
    9,160,920x = 396,024,646,535,424
  5. Step 5: Solve for x
    x = 396,024,646,535,424/9,160,920
  6. Step 6: Final answer
    x = 43,229,789.86

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.