Home / 8,143,317.38-11,242,140.86-6,278,660.33

Finding the Fourth Proportional to 8,143,317.38, 11,242,140.86 and 6,278,660.33

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Solution

The fourth proportional to 8,143,317.38, 11,242,140.86 and 6,278,660.33 is: 8,667,915.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,143,317.38 : 11,242,140.86 = 6,278,660.33 : x
  2. Step 2: Convert to fraction form
    8,143,317.38/11,242,140.86 = 6,278,660.33/x
  3. Step 3: Cross multiply
    8,143,317.38x = 11,242,140.86 × 6,278,660.33
  4. Step 4: Simplify right side
    8,143,317.38x = 70,585,583,801,440.03
  5. Step 5: Solve for x
    x = 70,585,583,801,440.03/8,143,317.38
  6. Step 6: Final answer
    x = 8,667,915.11

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Double scale
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1.5x scale

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.