Home / 165,612,380.43-228,541,148.42-90,261,087.56

Finding the Fourth Proportional to 165,612,380.43, 228,541,148.42 and 90,261,087.56

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Solution

The fourth proportional to 165,612,380.43, 228,541,148.42 and 90,261,087.56 is: 124,558,155.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,612,380.43 : 228,541,148.42 = 90,261,087.56 : x
  2. Step 2: Convert to fraction form
    165,612,380.43/228,541,148.42 = 90,261,087.56/x
  3. Step 3: Cross multiply
    165,612,380.43x = 228,541,148.42 × 90,261,087.56
  4. Step 4: Simplify right side
    165,612,380.43x = 20,628,372,608,600,576
  5. Step 5: Solve for x
    x = 20,628,372,608,600,576/165,612,380.43
  6. Step 6: Final answer
    x = 124,558,155.34

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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.