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Finding the Third Proportional to 8,423,649 and 18,192,276

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Solution

The third proportional to 8,423,649 and 18,192,276 is: 39,289,256.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,423,649 : 18,192,276 = 18,192,276 : x
  2. Step 2: Convert to fraction form
    8,423,649/18,192,276 = 18,192,276/x
  3. Step 3: Cross multiply
    8,423,649x = 18,192,276 × 18,192,276
  4. Step 4: Simplify right side
    8,423,649x = 330,958,906,060,176
  5. Step 5: Solve for x
    x = 330,958,906,060,176/8,423,649
  6. Step 6: Final answer
    x = 39,289,256.48

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.