Home / 82,586,768.12-113,972,736.42-47,311,390.84

Finding the Fourth Proportional to 82,586,768.12, 113,972,736.42 and 47,311,390.84

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Solution

The fourth proportional to 82,586,768.12, 113,972,736.42 and 47,311,390.84 is: 65,291,435.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,586,768.12 : 113,972,736.42 = 47,311,390.84 : x
  2. Step 2: Convert to fraction form
    82,586,768.12/113,972,736.42 = 47,311,390.84/x
  3. Step 3: Cross multiply
    82,586,768.12x = 113,972,736.42 × 47,311,390.84
  4. Step 4: Simplify right side
    82,586,768.12x = 5,392,208,677,870,923
  5. Step 5: Solve for x
    x = 5,392,208,677,870,923/82,586,768.12
  6. Step 6: Final answer
    x = 65,291,435.91

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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.