Home / 143,950,908.83-198,651,655.84-77,871,244.20

Finding the Fourth Proportional to 143,950,908.83, 198,651,655.84 and 77,871,244.20

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Solution

The fourth proportional to 143,950,908.83, 198,651,655.84 and 77,871,244.20 is: 107,461,993.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,950,908.83 : 198,651,655.84 = 77,871,244.20 : x
  2. Step 2: Convert to fraction form
    143,950,908.83/198,651,655.84 = 77,871,244.20/x
  3. Step 3: Cross multiply
    143,950,908.83x = 198,651,655.84 × 77,871,244.20
  4. Step 4: Simplify right side
    143,950,908.83x = 15,469,251,601,711,376
  5. Step 5: Solve for x
    x = 15,469,251,601,711,376/143,950,908.83
  6. Step 6: Final answer
    x = 107,461,993.31

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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.