Home / 2,178,120.60-3,260,960.10-2,115,912.60

Finding the Fourth Proportional to 2,178,120.60, 3,260,960.10 and 2,115,912.60

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Solution

The fourth proportional to 2,178,120.60, 3,260,960.10 and 2,115,912.60 is: 3,167,825.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178,120.60 : 3,260,960.10 = 2,115,912.60 : x
  2. Step 2: Convert to fraction form
    2,178,120.60/3,260,960.10 = 2,115,912.60/x
  3. Step 3: Cross multiply
    2,178,120.60x = 3,260,960.10 × 2,115,912.60
  4. Step 4: Simplify right side
    2,178,120.60x = 6,899,906,563,687.26
  5. Step 5: Solve for x
    x = 6,899,906,563,687.26/2,178,120.60
  6. Step 6: Final answer
    x = 3,167,825.77

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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.