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Finding the Third Proportional to 641,337,669 and 991,458,162

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Solution

The third proportional to 641,337,669 and 991,458,162 is: 1,532,717,216.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,337,669 : 991,458,162 = 991,458,162 : x
  2. Step 2: Convert to fraction form
    641,337,669/991,458,162 = 991,458,162/x
  3. Step 3: Cross multiply
    641,337,669x = 991,458,162 × 991,458,162
  4. Step 4: Simplify right side
    641,337,669x = 982,989,286,996,418,304
  5. Step 5: Solve for x
    x = 982,989,286,996,418,304/641,337,669
  6. Step 6: Final answer
    x = 1,532,717,216.70

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.