Home / 12,861,743.28-17,745,570.36-8,280,717.36

Finding the Fourth Proportional to 12,861,743.28, 17,745,570.36 and 8,280,717.36

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Solution

The fourth proportional to 12,861,743.28, 17,745,570.36 and 8,280,717.36 is: 11,425,049.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,861,743.28 : 17,745,570.36 = 8,280,717.36 : x
  2. Step 2: Convert to fraction form
    12,861,743.28/17,745,570.36 = 8,280,717.36/x
  3. Step 3: Cross multiply
    12,861,743.28x = 17,745,570.36 × 8,280,717.36
  4. Step 4: Simplify right side
    12,861,743.28x = 146,946,052,543,153.44
  5. Step 5: Solve for x
    x = 146,946,052,543,153.44/12,861,743.28
  6. Step 6: Final answer
    x = 11,425,049.42

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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.