Home / 143,490,331.34-198,022,936.78-80,770,476.14

Finding the Fourth Proportional to 143,490,331.34, 198,022,936.78 and 80,770,476.14

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Solution

The fourth proportional to 143,490,331.34, 198,022,936.78 and 80,770,476.14 is: 111,466,791.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,490,331.34 : 198,022,936.78 = 80,770,476.14 : x
  2. Step 2: Convert to fraction form
    143,490,331.34/198,022,936.78 = 80,770,476.14/x
  3. Step 3: Cross multiply
    143,490,331.34x = 198,022,936.78 × 80,770,476.14
  4. Step 4: Simplify right side
    143,490,331.34x = 15,994,406,890,361,718
  5. Step 5: Solve for x
    x = 15,994,406,890,361,718/143,490,331.34
  6. Step 6: Final answer
    x = 111,466,791.81

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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.