Home / 279,936,345.90-419,904,518.85-192,638,304.30

Finding the Fourth Proportional to 279,936,345.90, 419,904,518.85 and 192,638,304.30

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Solution

The fourth proportional to 279,936,345.90, 419,904,518.85 and 192,638,304.30 is: 288,957,456.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,345.90 : 419,904,518.85 = 192,638,304.30 : x
  2. Step 2: Convert to fraction form
    279,936,345.90/419,904,518.85 = 192,638,304.30/x
  3. Step 3: Cross multiply
    279,936,345.90x = 419,904,518.85 × 192,638,304.30
  4. Step 4: Simplify right side
    279,936,345.90x = 80,889,694,479,171,392
  5. Step 5: Solve for x
    x = 80,889,694,479,171,392/279,936,345.90
  6. Step 6: Final answer
    x = 288,957,456.45

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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.