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Finding the Third Proportional to 8,248,839.75 and 12,479,428.38

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Solution

The third proportional to 8,248,839.75 and 12,479,428.38 is: 18,879,762.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,248,839.75 : 12,479,428.38 = 12,479,428.38 : x
  2. Step 2: Convert to fraction form
    8,248,839.75/12,479,428.38 = 12,479,428.38/x
  3. Step 3: Cross multiply
    8,248,839.75x = 12,479,428.38 × 12,479,428.38
  4. Step 4: Simplify right side
    8,248,839.75x = 155,736,132,566,755.12
  5. Step 5: Solve for x
    x = 155,736,132,566,755.12/8,248,839.75
  6. Step 6: Final answer
    x = 18,879,762.16

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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.