Home / 20,038,520.78-27,653,212.27-10,871,163.53

Finding the Fourth Proportional to 20,038,520.78, 27,653,212.27 and 10,871,163.53

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Solution

The fourth proportional to 20,038,520.78, 27,653,212.27 and 10,871,163.53 is: 15,002,234.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,038,520.78 : 27,653,212.27 = 10,871,163.53 : x
  2. Step 2: Convert to fraction form
    20,038,520.78/27,653,212.27 = 10,871,163.53/x
  3. Step 3: Cross multiply
    20,038,520.78x = 27,653,212.27 × 10,871,163.53
  4. Step 4: Simplify right side
    20,038,520.78x = 300,622,592,716,972.50
  5. Step 5: Solve for x
    x = 300,622,592,716,972.50/20,038,520.78
  6. Step 6: Final answer
    x = 15,002,234.75

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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.