Home / 2,147,772.80-3,221,659.20-1,933,961.60

Finding the Fourth Proportional to 2,147,772.80, 3,221,659.20 and 1,933,961.60

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Solution

The fourth proportional to 2,147,772.80, 3,221,659.20 and 1,933,961.60 is: 2,900,942.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147,772.80 : 3,221,659.20 = 1,933,961.60 : x
  2. Step 2: Convert to fraction form
    2,147,772.80/3,221,659.20 = 1,933,961.60/x
  3. Step 3: Cross multiply
    2,147,772.80x = 3,221,659.20 × 1,933,961.60
  4. Step 4: Simplify right side
    2,147,772.80x = 6,230,565,181,086.72
  5. Step 5: Solve for x
    x = 6,230,565,181,086.72/2,147,772.80
  6. Step 6: Final answer
    x = 2,900,942.40

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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.