Home / 378,108,001.20-567,162,001.80-323,688,442.80

Finding the Fourth Proportional to 378,108,001.20, 567,162,001.80 and 323,688,442.80

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Solution

The fourth proportional to 378,108,001.20, 567,162,001.80 and 323,688,442.80 is: 485,532,664.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,108,001.20 : 567,162,001.80 = 323,688,442.80 : x
  2. Step 2: Convert to fraction form
    378,108,001.20/567,162,001.80 = 323,688,442.80/x
  3. Step 3: Cross multiply
    378,108,001.20x = 567,162,001.80 × 323,688,442.80
  4. Step 4: Simplify right side
    378,108,001.20x = 183,583,785,177,972,800
  5. Step 5: Solve for x
    x = 183,583,785,177,972,800/378,108,001.20
  6. Step 6: Final answer
    x = 485,532,664.20

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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.