Home / 212,544,003.20-318,816,004.80-193,396,380.80

Finding the Fourth Proportional to 212,544,003.20, 318,816,004.80 and 193,396,380.80

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Solution

The fourth proportional to 212,544,003.20, 318,816,004.80 and 193,396,380.80 is: 290,094,571.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,544,003.20 : 318,816,004.80 = 193,396,380.80 : x
  2. Step 2: Convert to fraction form
    212,544,003.20/318,816,004.80 = 193,396,380.80/x
  3. Step 3: Cross multiply
    212,544,003.20x = 318,816,004.80 × 193,396,380.80
  4. Step 4: Simplify right side
    212,544,003.20x = 61,657,861,469,435,432
  5. Step 5: Solve for x
    x = 61,657,861,469,435,432/212,544,003.20
  6. Step 6: Final answer
    x = 290,094,571.20

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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.