Home / 12,424,382.28-17,145,483.60-7,198,102.92

Finding the Fourth Proportional to 12,424,382.28, 17,145,483.60 and 7,198,102.92

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Solution

The fourth proportional to 12,424,382.28, 17,145,483.60 and 7,198,102.92 is: 9,933,287.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,424,382.28 : 17,145,483.60 = 7,198,102.92 : x
  2. Step 2: Convert to fraction form
    12,424,382.28/17,145,483.60 = 7,198,102.92/x
  3. Step 3: Cross multiply
    12,424,382.28x = 17,145,483.60 × 7,198,102.92
  4. Step 4: Simplify right side
    12,424,382.28x = 123,414,955,565,972.12
  5. Step 5: Solve for x
    x = 123,414,955,565,972.12/12,424,382.28
  6. Step 6: Final answer
    x = 9,933,287.05

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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.