Home / 12,216,173.28-18,321,232.14-4,128,969.39

Finding the Fourth Proportional to 12,216,173.28, 18,321,232.14 and 4,128,969.39

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Solution

The fourth proportional to 12,216,173.28, 18,321,232.14 and 4,128,969.39 is: 6,192,430.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,216,173.28 : 18,321,232.14 = 4,128,969.39 : x
  2. Step 2: Convert to fraction form
    12,216,173.28/18,321,232.14 = 4,128,969.39/x
  3. Step 3: Cross multiply
    12,216,173.28x = 18,321,232.14 × 4,128,969.39
  4. Step 4: Simplify right side
    12,216,173.28x = 75,647,806,693,144.20
  5. Step 5: Solve for x
    x = 75,647,806,693,144.20/12,216,173.28
  6. Step 6: Final answer
    x = 6,192,430.72

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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.