Home / 5,475,639.80-8,212,832.20-1,432,517.78

Finding the Fourth Proportional to 5,475,639.80, 8,212,832.20 and 1,432,517.78

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Solution

The fourth proportional to 5,475,639.80, 8,212,832.20 and 1,432,517.78 is: 2,148,612.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475,639.80 : 8,212,832.20 = 1,432,517.78 : x
  2. Step 2: Convert to fraction form
    5,475,639.80/8,212,832.20 = 1,432,517.78/x
  3. Step 3: Cross multiply
    5,475,639.80x = 8,212,832.20 × 1,432,517.78
  4. Step 4: Simplify right side
    5,475,639.80x = 11,765,028,143,493.93
  5. Step 5: Solve for x
    x = 11,765,028,143,493.93/5,475,639.80
  6. Step 6: Final answer
    x = 2,148,612.50

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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.