Home / 13,673,626.16-18,867,507.68-7,871,286.80

Finding the Fourth Proportional to 13,673,626.16, 18,867,507.68 and 7,871,286.80

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Solution

The fourth proportional to 13,673,626.16, 18,867,507.68 and 7,871,286.80 is: 10,861,168.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,673,626.16 : 18,867,507.68 = 7,871,286.80 : x
  2. Step 2: Convert to fraction form
    13,673,626.16/18,867,507.68 = 7,871,286.80/x
  3. Step 3: Cross multiply
    13,673,626.16x = 18,867,507.68 × 7,871,286.80
  4. Step 4: Simplify right side
    13,673,626.16x = 148,511,564,150,482.62
  5. Step 5: Solve for x
    x = 148,511,564,150,482.62/13,673,626.16
  6. Step 6: Final answer
    x = 10,861,168.97

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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.