Home / 81,093,778.71-111,903,604.86-47,604,617.56

Finding the Fourth Proportional to 81,093,778.71, 111,903,604.86 and 47,604,617.56

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Solution

The fourth proportional to 81,093,778.71, 111,903,604.86 and 47,604,617.56 is: 65,690,961.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,093,778.71 : 111,903,604.86 = 47,604,617.56 : x
  2. Step 2: Convert to fraction form
    81,093,778.71/111,903,604.86 = 47,604,617.56/x
  3. Step 3: Cross multiply
    81,093,778.71x = 111,903,604.86 × 47,604,617.56
  4. Step 4: Simplify right side
    81,093,778.71x = 5,327,128,312,665,898
  5. Step 5: Solve for x
    x = 5,327,128,312,665,898/81,093,778.71
  6. Step 6: Final answer
    x = 65,690,961.72

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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.