Home / 12,880,165.28-17,776,313.04-8,309,781.92

Finding the Fourth Proportional to 12,880,165.28, 17,776,313.04 and 8,309,781.92

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Solution

The fourth proportional to 12,880,165.28, 17,776,313.04 and 8,309,781.92 is: 11,468,586.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,880,165.28 : 17,776,313.04 = 8,309,781.92 : x
  2. Step 2: Convert to fraction form
    12,880,165.28/17,776,313.04 = 8,309,781.92/x
  3. Step 3: Cross multiply
    12,880,165.28x = 17,776,313.04 × 8,309,781.92
  4. Step 4: Simplify right side
    12,880,165.28x = 147,717,284,704,052.22
  5. Step 5: Solve for x
    x = 147,717,284,704,052.22/12,880,165.28
  6. Step 6: Final answer
    x = 11,468,586.12

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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.