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Finding the Third Proportional to 639,899,980 and 955,656,759

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Solution

The third proportional to 639,899,980 and 955,656,759 is: 1,427,222,799.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,899,980 : 955,656,759 = 955,656,759 : x
  2. Step 2: Convert to fraction form
    639,899,980/955,656,759 = 955,656,759/x
  3. Step 3: Cross multiply
    639,899,980x = 955,656,759 × 955,656,759
  4. Step 4: Simplify right side
    639,899,980x = 913,279,841,022,384,128
  5. Step 5: Solve for x
    x = 913,279,841,022,384,128/639,899,980
  6. Step 6: Final answer
    x = 1,427,222,799.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.