Home / 143,950,912.11-198,651,660.37-77,871,247.48

Finding the Fourth Proportional to 143,950,912.11, 198,651,660.37 and 77,871,247.48

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Solution

The fourth proportional to 143,950,912.11, 198,651,660.37 and 77,871,247.48 is: 107,461,997.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,950,912.11 : 198,651,660.37 = 77,871,247.48 : x
  2. Step 2: Convert to fraction form
    143,950,912.11/198,651,660.37 = 77,871,247.48/x
  3. Step 3: Cross multiply
    143,950,912.11x = 198,651,660.37 × 77,871,247.48
  4. Step 4: Simplify right side
    143,950,912.11x = 15,469,252,606,985,180
  5. Step 5: Solve for x
    x = 15,469,252,606,985,180/143,950,912.11
  6. Step 6: Final answer
    x = 107,461,997.85

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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.