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Finding the Third Proportional to 3,898,968 and 8,694,438

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Solution

The third proportional to 3,898,968 and 8,694,438 is: 19,388,015.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,898,968 : 8,694,438 = 8,694,438 : x
  2. Step 2: Convert to fraction form
    3,898,968/8,694,438 = 8,694,438/x
  3. Step 3: Cross multiply
    3,898,968x = 8,694,438 × 8,694,438
  4. Step 4: Simplify right side
    3,898,968x = 75,593,252,135,844
  5. Step 5: Solve for x
    x = 75,593,252,135,844/3,898,968
  6. Step 6: Final answer
    x = 19,388,015.53

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.