Home / 260,859,754.80-391,289,380.29-66,770,858.79

Finding the Fourth Proportional to 260,859,754.80, 391,289,380.29 and 66,770,858.79

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Solution

The fourth proportional to 260,859,754.80, 391,289,380.29 and 66,770,858.79 is: 100,156,223.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,859,754.80 : 391,289,380.29 = 66,770,858.79 : x
  2. Step 2: Convert to fraction form
    260,859,754.80/391,289,380.29 = 66,770,858.79/x
  3. Step 3: Cross multiply
    260,859,754.80x = 391,289,380.29 × 66,770,858.79
  4. Step 4: Simplify right side
    260,859,754.80x = 26,126,727,957,370,200
  5. Step 5: Solve for x
    x = 26,126,727,957,370,200/260,859,754.80
  6. Step 6: Final answer
    x = 100,156,223.70

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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.