Home / 168,439,339.20-252,659,008.80-143,780,476.80

Finding the Fourth Proportional to 168,439,339.20, 252,659,008.80 and 143,780,476.80

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Solution

The fourth proportional to 168,439,339.20, 252,659,008.80 and 143,780,476.80 is: 215,670,715.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,439,339.20 : 252,659,008.80 = 143,780,476.80 : x
  2. Step 2: Convert to fraction form
    168,439,339.20/252,659,008.80 = 143,780,476.80/x
  3. Step 3: Cross multiply
    168,439,339.20x = 252,659,008.80 × 143,780,476.80
  4. Step 4: Simplify right side
    168,439,339.20x = 36,327,432,753,079,400
  5. Step 5: Solve for x
    x = 36,327,432,753,079,400/168,439,339.20
  6. Step 6: Final answer
    x = 215,670,715.20

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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.