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Finding the Third Proportional to 4,129,950.38 and 8,857,756.69

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Solution

The third proportional to 4,129,950.38 and 8,857,756.69 is: 18,997,771.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129,950.38 : 8,857,756.69 = 8,857,756.69 : x
  2. Step 2: Convert to fraction form
    4,129,950.38/8,857,756.69 = 8,857,756.69/x
  3. Step 3: Cross multiply
    4,129,950.38x = 8,857,756.69 × 8,857,756.69
  4. Step 4: Simplify right side
    4,129,950.38x = 78,459,853,534,950.97
  5. Step 5: Solve for x
    x = 78,459,853,534,950.97/4,129,950.38
  6. Step 6: Final answer
    x = 18,997,771.50

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.