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Finding the Third Proportional to 66,751,902 and 138,619,674

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Solution

The third proportional to 66,751,902 and 138,619,674 is: 287,863,168.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,751,902 : 138,619,674 = 138,619,674 : x
  2. Step 2: Convert to fraction form
    66,751,902/138,619,674 = 138,619,674/x
  3. Step 3: Cross multiply
    66,751,902x = 138,619,674 × 138,619,674
  4. Step 4: Simplify right side
    66,751,902x = 19,215,414,019,866,276
  5. Step 5: Solve for x
    x = 19,215,414,019,866,276/66,751,902
  6. Step 6: Final answer
    x = 287,863,168.60

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.