Home / 391,102,867.80-586,654,301.70-132,326,530.20

Finding the Fourth Proportional to 391,102,867.80, 586,654,301.70 and 132,326,530.20

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Solution

The fourth proportional to 391,102,867.80, 586,654,301.70 and 132,326,530.20 is: 198,489,795.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,102,867.80 : 586,654,301.70 = 132,326,530.20 : x
  2. Step 2: Convert to fraction form
    391,102,867.80/586,654,301.70 = 132,326,530.20/x
  3. Step 3: Cross multiply
    391,102,867.80x = 586,654,301.70 × 132,326,530.20
  4. Step 4: Simplify right side
    391,102,867.80x = 77,629,928,170,864,976
  5. Step 5: Solve for x
    x = 77,629,928,170,864,976/391,102,867.80
  6. Step 6: Final answer
    x = 198,489,795.30

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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.