Home / 18,685,375.98-25,798,568.84-12,085,961.33

Finding the Fourth Proportional to 18,685,375.98, 25,798,568.84 and 12,085,961.33

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Solution

The fourth proportional to 18,685,375.98, 25,798,568.84 and 12,085,961.33 is: 16,686,873.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685,375.98 : 25,798,568.84 = 12,085,961.33 : x
  2. Step 2: Convert to fraction form
    18,685,375.98/25,798,568.84 = 12,085,961.33/x
  3. Step 3: Cross multiply
    18,685,375.98x = 25,798,568.84 × 12,085,961.33
  4. Step 4: Simplify right side
    18,685,375.98x = 311,800,505,180,160.31
  5. Step 5: Solve for x
    x = 311,800,505,180,160.31/18,685,375.98
  6. Step 6: Final answer
    x = 16,686,873.49

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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.