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Finding the Third Proportional to 3,215,682 and 5,118,723

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Solution

The third proportional to 3,215,682 and 5,118,723 is: 8,147,983.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215,682 : 5,118,723 = 5,118,723 : x
  2. Step 2: Convert to fraction form
    3,215,682/5,118,723 = 5,118,723/x
  3. Step 3: Cross multiply
    3,215,682x = 5,118,723 × 5,118,723
  4. Step 4: Simplify right side
    3,215,682x = 26,201,325,150,729
  5. Step 5: Solve for x
    x = 26,201,325,150,729/3,215,682
  6. Step 6: Final answer
    x = 8,147,983.90

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.