Home / 3,819,980.44-5,272,321.85-2,189,480.64

Finding the Fourth Proportional to 3,819,980.44, 5,272,321.85 and 2,189,480.64

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Solution

The fourth proportional to 3,819,980.44, 5,272,321.85 and 2,189,480.64 is: 3,021,912.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819,980.44 : 5,272,321.85 = 2,189,480.64 : x
  2. Step 2: Convert to fraction form
    3,819,980.44/5,272,321.85 = 2,189,480.64/x
  3. Step 3: Cross multiply
    3,819,980.44x = 5,272,321.85 × 2,189,480.64
  4. Step 4: Simplify right side
    3,819,980.44x = 11,543,646,635,458.34
  5. Step 5: Solve for x
    x = 11,543,646,635,458.34/3,819,980.44
  6. Step 6: Final answer
    x = 3,021,912.50

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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.