Home / 391,668,193,205.78-587,770,652,600.45-136,697,576,687.37

Finding the Fourth Proportional to 391,668,193,205.78, 587,770,652,600.45 and 136,697,576,687.37

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Solution

The fourth proportional to 391,668,193,205.78, 587,770,652,600.45 and 136,697,576,687.37 is: 205,140,027,329.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,668,193,205.78 : 587,770,652,600.45 = 136,697,576,687.37 : x
  2. Step 2: Convert to fraction form
    391,668,193,205.78/587,770,652,600.45 = 136,697,576,687.37/x
  3. Step 3: Cross multiply
    391,668,193,205.78x = 587,770,652,600.45 × 136,697,576,687.37
  4. Step 4: Simplify right side
    391,668,193,205.78x = 80,346,823,858,435,511,025,664
  5. Step 5: Solve for x
    x = 80,346,823,858,435,511,025,664/391,668,193,205.78
  6. Step 6: Final answer
    x = 205,140,027,329.77

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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.