Home / 391,456,933.80-587,166,738.30-132,646,770.60

Finding the Fourth Proportional to 391,456,933.80, 587,166,738.30 and 132,646,770.60

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Solution

The fourth proportional to 391,456,933.80, 587,166,738.30 and 132,646,770.60 is: 198,963,832.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,456,933.80 : 587,166,738.30 = 132,646,770.60 : x
  2. Step 2: Convert to fraction form
    391,456,933.80/587,166,738.30 = 132,646,770.60/x
  3. Step 3: Cross multiply
    391,456,933.80x = 587,166,738.30 × 132,646,770.60
  4. Step 4: Simplify right side
    391,456,933.80x = 77,885,771,639,230,320
  5. Step 5: Solve for x
    x = 77,885,771,639,230,320/391,456,933.80
  6. Step 6: Final answer
    x = 198,963,832.07

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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.