Home / 154,555,452.80-231,861,172.80-77,685,027.20

Finding the Fourth Proportional to 154,555,452.80, 231,861,172.80 and 77,685,027.20

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Solution

The fourth proportional to 154,555,452.80, 231,861,172.80 and 77,685,027.20 is: 116,541,611.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,555,452.80 : 231,861,172.80 = 77,685,027.20 : x
  2. Step 2: Convert to fraction form
    154,555,452.80/231,861,172.80 = 77,685,027.20/x
  3. Step 3: Cross multiply
    154,555,452.80x = 231,861,172.80 × 77,685,027.20
  4. Step 4: Simplify right side
    154,555,452.80x = 18,012,141,515,591,902
  5. Step 5: Solve for x
    x = 18,012,141,515,591,902/154,555,452.80
  6. Step 6: Final answer
    x = 116,541,611.37

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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.