Home / 391,668,194,830.40-587,770,655,035.80-136,697,578,310.73

Finding the Fourth Proportional to 391,668,194,830.40, 587,770,655,035.80 and 136,697,578,310.73

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Solution

The fourth proportional to 391,668,194,830.40, 587,770,655,035.80 and 136,697,578,310.73 is: 205,140,029,764.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,668,194,830.40 : 587,770,655,035.80 = 136,697,578,310.73 : x
  2. Step 2: Convert to fraction form
    391,668,194,830.40/587,770,655,035.80 = 136,697,578,310.73/x
  3. Step 3: Cross multiply
    391,668,194,830.40x = 587,770,655,035.80 × 136,697,578,310.73
  4. Step 4: Simplify right side
    391,668,194,830.40x = 80,346,825,145,505,340,719,104
  5. Step 5: Solve for x
    x = 80,346,825,145,505,340,719,104/391,668,194,830.40
  6. Step 6: Final answer
    x = 205,140,029,764.98

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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.