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Finding the Third Proportional to 3,998,883.50 and 8,613,737.50

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Solution

The third proportional to 3,998,883.50 and 8,613,737.50 is: 18,554,297.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998,883.50 : 8,613,737.50 = 8,613,737.50 : x
  2. Step 2: Convert to fraction form
    3,998,883.50/8,613,737.50 = 8,613,737.50/x
  3. Step 3: Cross multiply
    3,998,883.50x = 8,613,737.50 × 8,613,737.50
  4. Step 4: Simplify right side
    3,998,883.50x = 74,196,473,718,906.25
  5. Step 5: Solve for x
    x = 74,196,473,718,906.25/3,998,883.50
  6. Step 6: Final answer
    x = 18,554,297.40

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.