Home / 111,780,147.20-167,334,297.60-66,318,540.80

Finding the Fourth Proportional to 111,780,147.20, 167,334,297.60 and 66,318,540.80

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Solution

The fourth proportional to 111,780,147.20, 167,334,297.60 and 66,318,540.80 is: 99,278,509.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,780,147.20 : 167,334,297.60 = 66,318,540.80 : x
  2. Step 2: Convert to fraction form
    111,780,147.20/167,334,297.60 = 66,318,540.80/x
  3. Step 3: Cross multiply
    111,780,147.20x = 167,334,297.60 × 66,318,540.80
  4. Step 4: Simplify right side
    111,780,147.20x = 11,097,366,442,624,942
  5. Step 5: Solve for x
    x = 11,097,366,442,624,942/111,780,147.20
  6. Step 6: Final answer
    x = 99,278,509.83

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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.