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Finding the Third Proportional to 3,934,142.50 and 8,466,157.50

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Solution

The third proportional to 3,934,142.50 and 8,466,157.50 is: 18,218,918.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,934,142.50 : 8,466,157.50 = 8,466,157.50 : x
  2. Step 2: Convert to fraction form
    3,934,142.50/8,466,157.50 = 8,466,157.50/x
  3. Step 3: Cross multiply
    3,934,142.50x = 8,466,157.50 × 8,466,157.50
  4. Step 4: Simplify right side
    3,934,142.50x = 71,675,822,814,806.25
  5. Step 5: Solve for x
    x = 71,675,822,814,806.25/3,934,142.50
  6. Step 6: Final answer
    x = 18,218,918.82

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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.