Home / 391,668,194,832.40-587,770,655,038.80-136,697,578,312.73

Finding the Fourth Proportional to 391,668,194,832.40, 587,770,655,038.80 and 136,697,578,312.73

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Solution

The fourth proportional to 391,668,194,832.40, 587,770,655,038.80 and 136,697,578,312.73 is: 205,140,029,767.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,668,194,832.40 : 587,770,655,038.80 = 136,697,578,312.73 : x
  2. Step 2: Convert to fraction form
    391,668,194,832.40/587,770,655,038.80 = 136,697,578,312.73/x
  3. Step 3: Cross multiply
    391,668,194,832.40x = 587,770,655,038.80 × 136,697,578,312.73
  4. Step 4: Simplify right side
    391,668,194,832.40x = 80,346,825,147,090,972,180,480
  5. Step 5: Solve for x
    x = 80,346,825,147,090,972,180,480/391,668,194,832.40
  6. Step 6: Final answer
    x = 205,140,029,767.98

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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.