Home / 8,680,947.78-11,979,687.33-4,813,369.50

Finding the Fourth Proportional to 8,680,947.78, 11,979,687.33 and 4,813,369.50

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Solution

The fourth proportional to 8,680,947.78, 11,979,687.33 and 4,813,369.50 is: 6,642,438.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680,947.78 : 11,979,687.33 = 4,813,369.50 : x
  2. Step 2: Convert to fraction form
    8,680,947.78/11,979,687.33 = 4,813,369.50/x
  3. Step 3: Cross multiply
    8,680,947.78x = 11,979,687.33 × 4,813,369.50
  4. Step 4: Simplify right side
    8,680,947.78x = 57,662,661,613,758.44
  5. Step 5: Solve for x
    x = 57,662,661,613,758.44/8,680,947.78
  6. Step 6: Final answer
    x = 6,642,438.48

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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.