Home / 321,907,812.20-482,861,718.30-256,150,845.80

Finding the Fourth Proportional to 321,907,812.20, 482,861,718.30 and 256,150,845.80

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Solution

The fourth proportional to 321,907,812.20, 482,861,718.30 and 256,150,845.80 is: 384,226,268.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,907,812.20 : 482,861,718.30 = 256,150,845.80 : x
  2. Step 2: Convert to fraction form
    321,907,812.20/482,861,718.30 = 256,150,845.80/x
  3. Step 3: Cross multiply
    321,907,812.20x = 482,861,718.30 × 256,150,845.80
  4. Step 4: Simplify right side
    321,907,812.20x = 123,685,437,546,986,352
  5. Step 5: Solve for x
    x = 123,685,437,546,986,352/321,907,812.20
  6. Step 6: Final answer
    x = 384,226,268.70

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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.