Home / 378,145,643.20-567,218,464.80-323,726,084.80

Finding the Fourth Proportional to 378,145,643.20, 567,218,464.80 and 323,726,084.80

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Solution

The fourth proportional to 378,145,643.20, 567,218,464.80 and 323,726,084.80 is: 485,589,127.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,145,643.20 : 567,218,464.80 = 323,726,084.80 : x
  2. Step 2: Convert to fraction form
    378,145,643.20/567,218,464.80 = 323,726,084.80/x
  3. Step 3: Cross multiply
    378,145,643.20x = 567,218,464.80 × 323,726,084.80
  4. Step 4: Simplify right side
    378,145,643.20x = 183,623,412,835,970,592
  5. Step 5: Solve for x
    x = 183,623,412,835,970,592/378,145,643.20
  6. Step 6: Final answer
    x = 485,589,127.20

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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.