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Finding the Third Proportional to 18,403,770 and 39,874,665

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Solution

The third proportional to 18,403,770 and 39,874,665 is: 86,394,739.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,403,770 : 39,874,665 = 39,874,665 : x
  2. Step 2: Convert to fraction form
    18,403,770/39,874,665 = 39,874,665/x
  3. Step 3: Cross multiply
    18,403,770x = 39,874,665 × 39,874,665
  4. Step 4: Simplify right side
    18,403,770x = 1,589,988,908,862,225
  5. Step 5: Solve for x
    x = 1,589,988,908,862,225/18,403,770
  6. Step 6: Final answer
    x = 86,394,739.17

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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.