Home / 256,609,672.20-384,914,508.30-254,342,190.60

Finding the Fourth Proportional to 256,609,672.20, 384,914,508.30 and 254,342,190.60

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Solution

The fourth proportional to 256,609,672.20, 384,914,508.30 and 254,342,190.60 is: 381,513,285.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,609,672.20 : 384,914,508.30 = 254,342,190.60 : x
  2. Step 2: Convert to fraction form
    256,609,672.20/384,914,508.30 = 254,342,190.60/x
  3. Step 3: Cross multiply
    256,609,672.20x = 384,914,508.30 × 254,342,190.60
  4. Step 4: Simplify right side
    256,609,672.20x = 97,899,999,234,743,888
  5. Step 5: Solve for x
    x = 97,899,999,234,743,888/256,609,672.20
  6. Step 6: Final answer
    x = 381,513,285.90

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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.