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Finding the Third Proportional to 287,491,155.75 and 625,353,734.25

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Solution

The third proportional to 287,491,155.75 and 625,353,734.25 is: 1,360,275,908.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,491,155.75 : 625,353,734.25 = 625,353,734.25 : x
  2. Step 2: Convert to fraction form
    287,491,155.75/625,353,734.25 = 625,353,734.25/x
  3. Step 3: Cross multiply
    287,491,155.75x = 625,353,734.25 × 625,353,734.25
  4. Step 4: Simplify right side
    287,491,155.75x = 391,067,292,940,419,648
  5. Step 5: Solve for x
    x = 391,067,292,940,419,648/287,491,155.75
  6. Step 6: Final answer
    x = 1,360,275,908.04

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.