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Finding the Third Proportional to 8,354,928 and 12,587,707

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Solution

The third proportional to 8,354,928 and 12,587,707 is: 18,964,899.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,354,928 : 12,587,707 = 12,587,707 : x
  2. Step 2: Convert to fraction form
    8,354,928/12,587,707 = 12,587,707/x
  3. Step 3: Cross multiply
    8,354,928x = 12,587,707 × 12,587,707
  4. Step 4: Simplify right side
    8,354,928x = 158,450,367,517,849
  5. Step 5: Solve for x
    x = 158,450,367,517,849/8,354,928
  6. Step 6: Final answer
    x = 18,964,899.22

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.