Home / 2,135,187.20-3,198,115.20-1,658,129.60

Finding the Fourth Proportional to 2,135,187.20, 3,198,115.20 and 1,658,129.60

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Solution

The fourth proportional to 2,135,187.20, 3,198,115.20 and 1,658,129.60 is: 2,483,571.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135,187.20 : 3,198,115.20 = 1,658,129.60 : x
  2. Step 2: Convert to fraction form
    2,135,187.20/3,198,115.20 = 1,658,129.60/x
  3. Step 3: Cross multiply
    2,135,187.20x = 3,198,115.20 × 1,658,129.60
  4. Step 4: Simplify right side
    2,135,187.20x = 5,302,889,477,329.92
  5. Step 5: Solve for x
    x = 5,302,889,477,329.92/2,135,187.20
  6. Step 6: Final answer
    x = 2,483,571.22

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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.