Home / 378,585,964.80-567,654,998.40-197,187,436.80

Finding the Fourth Proportional to 378,585,964.80, 567,654,998.40 and 197,187,436.80

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Solution

The fourth proportional to 378,585,964.80, 567,654,998.40 and 197,187,436.80 is: 295,664,510.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,585,964.80 : 567,654,998.40 = 197,187,436.80 : x
  2. Step 2: Convert to fraction form
    378,585,964.80/567,654,998.40 = 197,187,436.80/x
  3. Step 3: Cross multiply
    378,585,964.80x = 567,654,998.40 × 197,187,436.80
  4. Step 4: Simplify right side
    378,585,964.80x = 111,934,434,121,204,096
  5. Step 5: Solve for x
    x = 111,934,434,121,204,096/378,585,964.80
  6. Step 6: Final answer
    x = 295,664,510.91

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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.