Home / 18,145,667.80-27,223,313.10-7,906,133.80

Finding the Fourth Proportional to 18,145,667.80, 27,223,313.10 and 7,906,133.80

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Solution

The fourth proportional to 18,145,667.80, 27,223,313.10 and 7,906,133.80 is: 11,861,297.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145,667.80 : 27,223,313.10 = 7,906,133.80 : x
  2. Step 2: Convert to fraction form
    18,145,667.80/27,223,313.10 = 7,906,133.80/x
  3. Step 3: Cross multiply
    18,145,667.80x = 27,223,313.10 × 7,906,133.80
  4. Step 4: Simplify right side
    18,145,667.80x = 215,231,155,847,892.78
  5. Step 5: Solve for x
    x = 215,231,155,847,892.78/18,145,667.80
  6. Step 6: Final answer
    x = 11,861,297.04

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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.