Home / 391,668,194,793.15-587,770,654,979.98-136,697,578,273.48

Finding the Fourth Proportional to 391,668,194,793.15, 587,770,654,979.98 and 136,697,578,273.48

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Solution

The fourth proportional to 391,668,194,793.15, 587,770,654,979.98 and 136,697,578,273.48 is: 205,140,029,709.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,668,194,793.15 : 587,770,654,979.98 = 136,697,578,273.48 : x
  2. Step 2: Convert to fraction form
    391,668,194,793.15/587,770,654,979.98 = 136,697,578,273.48/x
  3. Step 3: Cross multiply
    391,668,194,793.15x = 587,770,654,979.98 × 136,697,578,273.48
  4. Step 4: Simplify right side
    391,668,194,793.15x = 80,346,825,115,980,410,126,336
  5. Step 5: Solve for x
    x = 80,346,825,115,980,410,126,336/391,668,194,793.15
  6. Step 6: Final answer
    x = 205,140,029,709.11

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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.