Home / 81,093,778.82-111,903,605.01-47,604,617.67

Finding the Fourth Proportional to 81,093,778.82, 111,903,605.01 and 47,604,617.67

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Solution

The fourth proportional to 81,093,778.82, 111,903,605.01 and 47,604,617.67 is: 65,690,961.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,093,778.82 : 111,903,605.01 = 47,604,617.67 : x
  2. Step 2: Convert to fraction form
    81,093,778.82/111,903,605.01 = 47,604,617.67/x
  3. Step 3: Cross multiply
    81,093,778.82x = 111,903,605.01 × 47,604,617.67
  4. Step 4: Simplify right side
    81,093,778.82x = 5,327,128,332,395,747
  5. Step 5: Solve for x
    x = 5,327,128,332,395,747/81,093,778.82
  6. Step 6: Final answer
    x = 65,690,961.87

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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.