Home / 391,668,194,799.15-587,770,654,988.98-136,697,578,279.49

Finding the Fourth Proportional to 391,668,194,799.15, 587,770,654,988.98 and 136,697,578,279.49

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Solution

The fourth proportional to 391,668,194,799.15, 587,770,654,988.98 and 136,697,578,279.49 is: 205,140,029,718.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,668,194,799.15 : 587,770,654,988.98 = 136,697,578,279.49 : x
  2. Step 2: Convert to fraction form
    391,668,194,799.15/587,770,654,988.98 = 136,697,578,279.49/x
  3. Step 3: Cross multiply
    391,668,194,799.15x = 587,770,654,988.98 × 136,697,578,279.49
  4. Step 4: Simplify right side
    391,668,194,799.15x = 80,346,825,120,743,210,090,496
  5. Step 5: Solve for x
    x = 80,346,825,120,743,210,090,496/391,668,194,799.15
  6. Step 6: Final answer
    x = 205,140,029,718.13

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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.