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Finding the Third Proportional to 391,061,587.50 and 849,383,691.75

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Solution

The third proportional to 391,061,587.50 and 849,383,691.75 is: 1,844,856,868.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,061,587.50 : 849,383,691.75 = 849,383,691.75 : x
  2. Step 2: Convert to fraction form
    391,061,587.50/849,383,691.75 = 849,383,691.75/x
  3. Step 3: Cross multiply
    391,061,587.50x = 849,383,691.75 × 849,383,691.75
  4. Step 4: Simplify right side
    391,061,587.50x = 721,452,655,810,859,008
  5. Step 5: Solve for x
    x = 721,452,655,810,859,008/391,061,587.50
  6. Step 6: Final answer
    x = 1,844,856,868.77

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.