Home / 143,820,677.82-198,472,449.83-77,741,177.14

Finding the Fourth Proportional to 143,820,677.82, 198,472,449.83 and 77,741,177.14

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Solution

The fourth proportional to 143,820,677.82, 198,472,449.83 and 77,741,177.14 is: 107,282,778.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,820,677.82 : 198,472,449.83 = 77,741,177.14 : x
  2. Step 2: Convert to fraction form
    143,820,677.82/198,472,449.83 = 77,741,177.14/x
  3. Step 3: Cross multiply
    143,820,677.82x = 198,472,449.83 × 77,741,177.14
  4. Step 4: Simplify right side
    143,820,677.82x = 15,429,481,880,717,036
  5. Step 5: Solve for x
    x = 15,429,481,880,717,036/143,820,677.82
  6. Step 6: Final answer
    x = 107,282,778.21

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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.