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Finding the Third Proportional to 12,663,668 and 20,959,529

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Solution

The third proportional to 12,663,668 and 20,959,529 is: 34,689,937.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,663,668 : 20,959,529 = 20,959,529 : x
  2. Step 2: Convert to fraction form
    12,663,668/20,959,529 = 20,959,529/x
  3. Step 3: Cross multiply
    12,663,668x = 20,959,529 × 20,959,529
  4. Step 4: Simplify right side
    12,663,668x = 439,301,855,901,841
  5. Step 5: Solve for x
    x = 439,301,855,901,841/12,663,668
  6. Step 6: Final answer
    x = 34,689,937.85

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.