Home / 18,803,268.74-25,940,480.31-12,991,961.41

Finding the Fourth Proportional to 18,803,268.74, 25,940,480.31 and 12,991,961.41

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Solution

The fourth proportional to 18,803,268.74, 25,940,480.31 and 12,991,961.41 is: 17,923,358.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,803,268.74 : 25,940,480.31 = 12,991,961.41 : x
  2. Step 2: Convert to fraction form
    18,803,268.74/25,940,480.31 = 12,991,961.41/x
  3. Step 3: Cross multiply
    18,803,268.74x = 25,940,480.31 × 12,991,961.41
  4. Step 4: Simplify right side
    18,803,268.74x = 337,017,719,079,533.62
  5. Step 5: Solve for x
    x = 337,017,719,079,533.62/18,803,268.74
  6. Step 6: Final answer
    x = 17,923,358.10

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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.