Home / 2,155,067.20-3,232,147.20-1,089,107.20

Finding the Fourth Proportional to 2,155,067.20, 3,232,147.20 and 1,089,107.20

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Solution

The fourth proportional to 2,155,067.20, 3,232,147.20 and 1,089,107.20 is: 1,633,431.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155,067.20 : 3,232,147.20 = 1,089,107.20 : x
  2. Step 2: Convert to fraction form
    2,155,067.20/3,232,147.20 = 1,089,107.20/x
  3. Step 3: Cross multiply
    2,155,067.20x = 3,232,147.20 × 1,089,107.20
  4. Step 4: Simplify right side
    2,155,067.20x = 3,520,154,786,979.84
  5. Step 5: Solve for x
    x = 3,520,154,786,979.84/2,155,067.20
  6. Step 6: Final answer
    x = 1,633,431.56

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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.