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Finding the Third Proportional to 42,981,992 and 66,145,384

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Solution

The third proportional to 42,981,992 and 66,145,384 is: 101,791,741.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,981,992 : 66,145,384 = 66,145,384 : x
  2. Step 2: Convert to fraction form
    42,981,992/66,145,384 = 66,145,384/x
  3. Step 3: Cross multiply
    42,981,992x = 66,145,384 × 66,145,384
  4. Step 4: Simplify right side
    42,981,992x = 4,375,211,824,507,456
  5. Step 5: Solve for x
    x = 4,375,211,824,507,456/42,981,992
  6. Step 6: Final answer
    x = 101,791,741.63

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.