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Finding the Third Proportional to 3,918,580.88 and 8,491,083.75

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Solution

The third proportional to 3,918,580.88 and 8,491,083.75 is: 18,399,136.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918,580.88 : 8,491,083.75 = 8,491,083.75 : x
  2. Step 2: Convert to fraction form
    3,918,580.88/8,491,083.75 = 8,491,083.75/x
  3. Step 3: Cross multiply
    3,918,580.88x = 8,491,083.75 × 8,491,083.75
  4. Step 4: Simplify right side
    3,918,580.88x = 72,098,503,249,514.06
  5. Step 5: Solve for x
    x = 72,098,503,249,514.06/3,918,580.88
  6. Step 6: Final answer
    x = 18,399,136.21

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.