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Finding the Third Proportional to 9,690,667 and 21,291,739

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Solution

The third proportional to 9,690,667 and 21,291,739 is: 46,780,902.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,690,667 : 21,291,739 = 21,291,739 : x
  2. Step 2: Convert to fraction form
    9,690,667/21,291,739 = 21,291,739/x
  3. Step 3: Cross multiply
    9,690,667x = 21,291,739 × 21,291,739
  4. Step 4: Simplify right side
    9,690,667x = 453,338,149,644,121
  5. Step 5: Solve for x
    x = 453,338,149,644,121/9,690,667
  6. Step 6: Final answer
    x = 46,780,902.66

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.