Home / 144,007,759.78-198,731,231.60-77,928,250.91

Finding the Fourth Proportional to 144,007,759.78, 198,731,231.60 and 77,928,250.91

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Solution

The fourth proportional to 144,007,759.78, 198,731,231.60 and 77,928,250.91 is: 107,541,269.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,007,759.78 : 198,731,231.60 = 77,928,250.91 : x
  2. Step 2: Convert to fraction form
    144,007,759.78/198,731,231.60 = 77,928,250.91/x
  3. Step 3: Cross multiply
    144,007,759.78x = 198,731,231.60 × 77,928,250.91
  4. Step 4: Simplify right side
    144,007,759.78x = 15,486,777,278,394,824
  5. Step 5: Solve for x
    x = 15,486,777,278,394,824/144,007,759.78
  6. Step 6: Final answer
    x = 107,541,269.32

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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.