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Finding the Third Proportional to 8,669,934 and 18,866,128

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Solution

The third proportional to 8,669,934 and 18,866,128 is: 41,053,459.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,669,934 : 18,866,128 = 18,866,128 : x
  2. Step 2: Convert to fraction form
    8,669,934/18,866,128 = 18,866,128/x
  3. Step 3: Cross multiply
    8,669,934x = 18,866,128 × 18,866,128
  4. Step 4: Simplify right side
    8,669,934x = 355,930,785,712,384
  5. Step 5: Solve for x
    x = 355,930,785,712,384/8,669,934
  6. Step 6: Final answer
    x = 41,053,459.66

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.