Home / 378,115,231.20-567,172,846.80-323,695,672.80

Finding the Fourth Proportional to 378,115,231.20, 567,172,846.80 and 323,695,672.80

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Solution

The fourth proportional to 378,115,231.20, 567,172,846.80 and 323,695,672.80 is: 485,543,509.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,115,231.20 : 567,172,846.80 = 323,695,672.80 : x
  2. Step 2: Convert to fraction form
    378,115,231.20/567,172,846.80 = 323,695,672.80/x
  3. Step 3: Cross multiply
    378,115,231.20x = 567,172,846.80 × 323,695,672.80
  4. Step 4: Simplify right side
    378,115,231.20x = 183,591,396,238,817,312
  5. Step 5: Solve for x
    x = 183,591,396,238,817,312/378,115,231.20
  6. Step 6: Final answer
    x = 485,543,509.20

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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.