Home / 321,907,626.20-482,861,439.30-256,150,659.80

Finding the Fourth Proportional to 321,907,626.20, 482,861,439.30 and 256,150,659.80

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Solution

The fourth proportional to 321,907,626.20, 482,861,439.30 and 256,150,659.80 is: 384,225,989.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,907,626.20 : 482,861,439.30 = 256,150,659.80 : x
  2. Step 2: Convert to fraction form
    321,907,626.20/482,861,439.30 = 256,150,659.80/x
  3. Step 3: Cross multiply
    321,907,626.20x = 482,861,439.30 × 256,150,659.80
  4. Step 4: Simplify right side
    321,907,626.20x = 123,685,276,268,672,656
  5. Step 5: Solve for x
    x = 123,685,276,268,672,656/321,907,626.20
  6. Step 6: Final answer
    x = 384,225,989.70

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1.5x scale

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.