Home / 168,439,337.70-252,659,006.55-143,780,475.30

Finding the Fourth Proportional to 168,439,337.70, 252,659,006.55 and 143,780,475.30

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Solution

The fourth proportional to 168,439,337.70, 252,659,006.55 and 143,780,475.30 is: 215,670,712.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,439,337.70 : 252,659,006.55 = 143,780,475.30 : x
  2. Step 2: Convert to fraction form
    168,439,337.70/252,659,006.55 = 143,780,475.30/x
  3. Step 3: Cross multiply
    168,439,337.70x = 252,659,006.55 × 143,780,475.30
  4. Step 4: Simplify right side
    168,439,337.70x = 36,327,432,050,584,816
  5. Step 5: Solve for x
    x = 36,327,432,050,584,816/168,439,337.70
  6. Step 6: Final answer
    x = 215,670,712.95

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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.