Home / 431,757,195.60-647,595,639.90-120,892,947.96

Finding the Fourth Proportional to 431,757,195.60, 647,595,639.90 and 120,892,947.96

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Solution

The fourth proportional to 431,757,195.60, 647,595,639.90 and 120,892,947.96 is: 181,328,178.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,757,195.60 : 647,595,639.90 = 120,892,947.96 : x
  2. Step 2: Convert to fraction form
    431,757,195.60/647,595,639.90 = 120,892,947.96/x
  3. Step 3: Cross multiply
    431,757,195.60x = 647,595,639.90 × 120,892,947.96
  4. Step 4: Simplify right side
    431,757,195.60x = 78,289,745,993,553,600
  5. Step 5: Solve for x
    x = 78,289,745,993,553,600/431,757,195.60
  6. Step 6: Final answer
    x = 181,328,178.87

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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.