Home / 87,540,429.92-120,820,794.36-50,892,258.56

Finding the Fourth Proportional to 87,540,429.92, 120,820,794.36 and 50,892,258.56

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Solution

The fourth proportional to 87,540,429.92, 120,820,794.36 and 50,892,258.56 is: 70,240,037.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,540,429.92 : 120,820,794.36 = 50,892,258.56 : x
  2. Step 2: Convert to fraction form
    87,540,429.92/120,820,794.36 = 50,892,258.56/x
  3. Step 3: Cross multiply
    87,540,429.92x = 120,820,794.36 × 50,892,258.56
  4. Step 4: Simplify right side
    87,540,429.92x = 6,148,843,105,993,710
  5. Step 5: Solve for x
    x = 6,148,843,105,993,710/87,540,429.92
  6. Step 6: Final answer
    x = 70,240,037.79

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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.