Home / 139,061,429.82-191,928,523.41-80,313,535.98

Finding the Fourth Proportional to 139,061,429.82, 191,928,523.41 and 80,313,535.98

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Solution

The fourth proportional to 139,061,429.82, 191,928,523.41 and 80,313,535.98 is: 110,846,396.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,061,429.82 : 191,928,523.41 = 80,313,535.98 : x
  2. Step 2: Convert to fraction form
    139,061,429.82/191,928,523.41 = 80,313,535.98/x
  3. Step 3: Cross multiply
    139,061,429.82x = 191,928,523.41 × 80,313,535.98
  4. Step 4: Simplify right side
    139,061,429.82x = 15,414,458,370,477,308
  5. Step 5: Solve for x
    x = 15,414,458,370,477,308/139,061,429.82
  6. Step 6: Final answer
    x = 110,846,396.38

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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.