Home / 2,168,179.78-2,991,987.30-1,188,113

Finding the Fourth Proportional to 2,168,179.78, 2,991,987.30 and 1,188,113

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Solution

The fourth proportional to 2,168,179.78, 2,991,987.30 and 1,188,113 is: 1,639,540.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,168,179.78 : 2,991,987.30 = 1,188,113 : x
  2. Step 2: Convert to fraction form
    2,168,179.78/2,991,987.30 = 1,188,113/x
  3. Step 3: Cross multiply
    2,168,179.78x = 2,991,987.30 × 1,188,113
  4. Step 4: Simplify right side
    2,168,179.78x = 3,554,819,006,964.90
  5. Step 5: Solve for x
    x = 3,554,819,006,964.90/2,168,179.78
  6. Step 6: Final answer
    x = 1,639,540.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.