Home / 391,668,193,205.72-587,770,652,600.40-136,697,576,687.30

Finding the Fourth Proportional to 391,668,193,205.72, 587,770,652,600.40 and 136,697,576,687.30

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Solution

The fourth proportional to 391,668,193,205.72, 587,770,652,600.40 and 136,697,576,687.30 is: 205,140,027,329.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,668,193,205.72 : 587,770,652,600.40 = 136,697,576,687.30 : x
  2. Step 2: Convert to fraction form
    391,668,193,205.72/587,770,652,600.40 = 136,697,576,687.30/x
  3. Step 3: Cross multiply
    391,668,193,205.72x = 587,770,652,600.40 × 136,697,576,687.30
  4. Step 4: Simplify right side
    391,668,193,205.72x = 80,346,823,858,387,544,965,120
  5. Step 5: Solve for x
    x = 80,346,823,858,387,544,965,120/391,668,193,205.72
  6. Step 6: Final answer
    x = 205,140,027,329.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.