Home / 3,915,109.20-5,867,998.20-1,640,629.20

Finding the Fourth Proportional to 3,915,109.20, 5,867,998.20 and 1,640,629.20

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Solution

The fourth proportional to 3,915,109.20, 5,867,998.20 and 1,640,629.20 is: 2,458,988.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915,109.20 : 5,867,998.20 = 1,640,629.20 : x
  2. Step 2: Convert to fraction form
    3,915,109.20/5,867,998.20 = 1,640,629.20/x
  3. Step 3: Cross multiply
    3,915,109.20x = 5,867,998.20 × 1,640,629.20
  4. Step 4: Simplify right side
    3,915,109.20x = 9,627,209,192,467.44
  5. Step 5: Solve for x
    x = 9,627,209,192,467.44/3,915,109.20
  6. Step 6: Final answer
    x = 2,458,988.68

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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.