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Finding the Third Proportional to 8,478,976 and 18,394,268

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Solution

The third proportional to 8,478,976 and 18,394,268 is: 39,904,476.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,478,976 : 18,394,268 = 18,394,268 : x
  2. Step 2: Convert to fraction form
    8,478,976/18,394,268 = 18,394,268/x
  3. Step 3: Cross multiply
    8,478,976x = 18,394,268 × 18,394,268
  4. Step 4: Simplify right side
    8,478,976x = 338,349,095,255,824
  5. Step 5: Solve for x
    x = 338,349,095,255,824/8,478,976
  6. Step 6: Final answer
    x = 39,904,476.11

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.