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Finding the Third Proportional to 18,181,767 and 40,399,385

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Solution

The third proportional to 18,181,767 and 40,399,385 is: 89,766,319.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,181,767 : 40,399,385 = 40,399,385 : x
  2. Step 2: Convert to fraction form
    18,181,767/40,399,385 = 40,399,385/x
  3. Step 3: Cross multiply
    18,181,767x = 40,399,385 × 40,399,385
  4. Step 4: Simplify right side
    18,181,767x = 1,632,110,308,378,225
  5. Step 5: Solve for x
    x = 1,632,110,308,378,225/18,181,767
  6. Step 6: Final answer
    x = 89,766,319.65

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.