Home / 391,668,194,829.40-587,770,655,034.30-136,697,578,309.73

Finding the Fourth Proportional to 391,668,194,829.40, 587,770,655,034.30 and 136,697,578,309.73

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Solution

The fourth proportional to 391,668,194,829.40, 587,770,655,034.30 and 136,697,578,309.73 is: 205,140,029,763.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,668,194,829.40 : 587,770,655,034.30 = 136,697,578,309.73 : x
  2. Step 2: Convert to fraction form
    391,668,194,829.40/587,770,655,034.30 = 136,697,578,309.73/x
  3. Step 3: Cross multiply
    391,668,194,829.40x = 587,770,655,034.30 × 136,697,578,309.73
  4. Step 4: Simplify right side
    391,668,194,829.40x = 80,346,825,144,712,533,377,024
  5. Step 5: Solve for x
    x = 80,346,825,144,712,533,377,024/391,668,194,829.40
  6. Step 6: Final answer
    x = 205,140,029,763.48

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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.