Home / 221,245,378.40-331,584,632.40-196,869,951.20

Finding the Fourth Proportional to 221,245,378.40, 331,584,632.40 and 196,869,951.20

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Solution

The fourth proportional to 221,245,378.40, 331,584,632.40 and 196,869,951.20 is: 295,052,718.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,245,378.40 : 331,584,632.40 = 196,869,951.20 : x
  2. Step 2: Convert to fraction form
    221,245,378.40/331,584,632.40 = 196,869,951.20/x
  3. Step 3: Cross multiply
    221,245,378.40x = 331,584,632.40 × 196,869,951.20
  4. Step 4: Simplify right side
    221,245,378.40x = 65,279,050,399,257,928
  5. Step 5: Solve for x
    x = 65,279,050,399,257,928/221,245,378.40
  6. Step 6: Final answer
    x = 295,052,718.71

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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.