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Finding the Third Proportional to 127,489,908 and 278,761,986

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Solution

The third proportional to 127,489,908 and 278,761,986 is: 609,524,675.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,489,908 : 278,761,986 = 278,761,986 : x
  2. Step 2: Convert to fraction form
    127,489,908/278,761,986 = 278,761,986/x
  3. Step 3: Cross multiply
    127,489,908x = 278,761,986 × 278,761,986
  4. Step 4: Simplify right side
    127,489,908x = 77,708,244,838,664,192
  5. Step 5: Solve for x
    x = 77,708,244,838,664,192/127,489,908
  6. Step 6: Final answer
    x = 609,524,675.78

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.