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Finding the Third Proportional to 9,198,988 and 20,008,687

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Solution

The third proportional to 9,198,988 and 20,008,687 is: 43,520,825.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,198,988 : 20,008,687 = 20,008,687 : x
  2. Step 2: Convert to fraction form
    9,198,988/20,008,687 = 20,008,687/x
  3. Step 3: Cross multiply
    9,198,988x = 20,008,687 × 20,008,687
  4. Step 4: Simplify right side
    9,198,988x = 400,347,555,463,969
  5. Step 5: Solve for x
    x = 400,347,555,463,969/9,198,988
  6. Step 6: Final answer
    x = 43,520,825.93

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.