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Finding the Fourth Proportional to 335,892,510.80, 503,838,766.20 and 278,496,882.80

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Solution

The fourth proportional to 335,892,510.80, 503,838,766.20 and 278,496,882.80 is: 417,745,324.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,892,510.80 : 503,838,766.20 = 278,496,882.80 : x
  2. Step 2: Convert to fraction form
    335,892,510.80/503,838,766.20 = 278,496,882.80/x
  3. Step 3: Cross multiply
    335,892,510.80x = 503,838,766.20 × 278,496,882.80
  4. Step 4: Simplify right side
    335,892,510.80x = 140,317,525,820,498,000
  5. Step 5: Solve for x
    x = 140,317,525,820,498,000/335,892,510.80
  6. Step 6: Final answer
    x = 417,745,324.20

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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.