Home / 426,517,529.20-639,847,152.60-167,741,191.60

Finding the Fourth Proportional to 426,517,529.20, 639,847,152.60 and 167,741,191.60

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Solution

The fourth proportional to 426,517,529.20, 639,847,152.60 and 167,741,191.60 is: 251,639,654.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,517,529.20 : 639,847,152.60 = 167,741,191.60 : x
  2. Step 2: Convert to fraction form
    426,517,529.20/639,847,152.60 = 167,741,191.60/x
  3. Step 3: Cross multiply
    426,517,529.20x = 639,847,152.60 × 167,741,191.60
  4. Step 4: Simplify right side
    426,517,529.20x = 107,328,723,818,991,040
  5. Step 5: Solve for x
    x = 107,328,723,818,991,040/426,517,529.20
  6. Step 6: Final answer
    x = 251,639,654.81

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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.