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Finding the Third Proportional to 18,403,800 and 39,874,722

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Solution

The third proportional to 18,403,800 and 39,874,722 is: 86,394,845.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,403,800 : 39,874,722 = 39,874,722 : x
  2. Step 2: Convert to fraction form
    18,403,800/39,874,722 = 39,874,722/x
  3. Step 3: Cross multiply
    18,403,800x = 39,874,722 × 39,874,722
  4. Step 4: Simplify right side
    18,403,800x = 1,589,993,454,577,284
  5. Step 5: Solve for x
    x = 1,589,993,454,577,284/18,403,800
  6. Step 6: Final answer
    x = 86,394,845.34

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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.