Home / 11,520,515.20-17,280,772.80-8,982,428.80

Finding the Fourth Proportional to 11,520,515.20, 17,280,772.80 and 8,982,428.80

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Solution

The fourth proportional to 11,520,515.20, 17,280,772.80 and 8,982,428.80 is: 13,473,643.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,520,515.20 : 17,280,772.80 = 8,982,428.80 : x
  2. Step 2: Convert to fraction form
    11,520,515.20/17,280,772.80 = 8,982,428.80/x
  3. Step 3: Cross multiply
    11,520,515.20x = 17,280,772.80 × 8,982,428.80
  4. Step 4: Simplify right side
    11,520,515.20x = 155,223,311,284,976.66
  5. Step 5: Solve for x
    x = 155,223,311,284,976.66/11,520,515.20
  6. Step 6: Final answer
    x = 13,473,643.20

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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.