Home / 12,543,812.73-18,812,079.42-5,257,082.09

Finding the Fourth Proportional to 12,543,812.73, 18,812,079.42 and 5,257,082.09

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Solution

The fourth proportional to 12,543,812.73, 18,812,079.42 and 5,257,082.09 is: 7,884,097.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,543,812.73 : 18,812,079.42 = 5,257,082.09 : x
  2. Step 2: Convert to fraction form
    12,543,812.73/18,812,079.42 = 5,257,082.09/x
  3. Step 3: Cross multiply
    12,543,812.73x = 18,812,079.42 × 5,257,082.09
  4. Step 4: Simplify right side
    12,543,812.73x = 98,896,645,700,479.20
  5. Step 5: Solve for x
    x = 98,896,645,700,479.20/12,543,812.73
  6. Step 6: Final answer
    x = 7,884,097.75

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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.