Home / 193,129,489.80-289,694,234.70-131,907,486.60

Finding the Fourth Proportional to 193,129,489.80, 289,694,234.70 and 131,907,486.60

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Solution

The fourth proportional to 193,129,489.80, 289,694,234.70 and 131,907,486.60 is: 197,861,229.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,129,489.80 : 289,694,234.70 = 131,907,486.60 : x
  2. Step 2: Convert to fraction form
    193,129,489.80/289,694,234.70 = 131,907,486.60/x
  3. Step 3: Cross multiply
    193,129,489.80x = 289,694,234.70 × 131,907,486.60
  4. Step 4: Simplify right side
    193,129,489.80x = 38,212,838,381,787,504
  5. Step 5: Solve for x
    x = 38,212,838,381,787,504/193,129,489.80
  6. Step 6: Final answer
    x = 197,861,229.90

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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.