Home / 12,474,338.50-18,718,972.80-5,382,626.50

Finding the Fourth Proportional to 12,474,338.50, 18,718,972.80 and 5,382,626.50

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Solution

The fourth proportional to 12,474,338.50, 18,718,972.80 and 5,382,626.50 is: 8,077,160.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,474,338.50 : 18,718,972.80 = 5,382,626.50 : x
  2. Step 2: Convert to fraction form
    12,474,338.50/18,718,972.80 = 5,382,626.50/x
  3. Step 3: Cross multiply
    12,474,338.50x = 18,718,972.80 × 5,382,626.50
  4. Step 4: Simplify right side
    12,474,338.50x = 100,757,239,046,059.20
  5. Step 5: Solve for x
    x = 100,757,239,046,059.20/12,474,338.50
  6. Step 6: Final answer
    x = 8,077,160.89

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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.