Home / 422,176,793.12-632,564,781.20-298,743,126.56

Finding the Fourth Proportional to 422,176,793.12, 632,564,781.20 and 298,743,126.56

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Solution

The fourth proportional to 422,176,793.12, 632,564,781.20 and 298,743,126.56 is: 447,619,062.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,176,793.12 : 632,564,781.20 = 298,743,126.56 : x
  2. Step 2: Convert to fraction form
    422,176,793.12/632,564,781.20 = 298,743,126.56/x
  3. Step 3: Cross multiply
    422,176,793.12x = 632,564,781.20 × 298,743,126.56
  4. Step 4: Simplify right side
    422,176,793.12x = 188,974,380,487,430,336
  5. Step 5: Solve for x
    x = 188,974,380,487,430,336/422,176,793.12
  6. Step 6: Final answer
    x = 447,619,062.84

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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.