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Finding the Third Proportional to 18,267,810 and 39,291,238

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Solution

The third proportional to 18,267,810 and 39,291,238 is: 84,509,384.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,267,810 : 39,291,238 = 39,291,238 : x
  2. Step 2: Convert to fraction form
    18,267,810/39,291,238 = 39,291,238/x
  3. Step 3: Cross multiply
    18,267,810x = 39,291,238 × 39,291,238
  4. Step 4: Simplify right side
    18,267,810x = 1,543,801,383,572,644
  5. Step 5: Solve for x
    x = 1,543,801,383,572,644/18,267,810
  6. Step 6: Final answer
    x = 84,509,384.74

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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.