Home / 3,889,105.92-5,366,956.32-2,170,208.16

Finding the Fourth Proportional to 3,889,105.92, 5,366,956.32 and 2,170,208.16

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Solution

The fourth proportional to 3,889,105.92, 5,366,956.32 and 2,170,208.16 is: 2,994,881.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,889,105.92 : 5,366,956.32 = 2,170,208.16 : x
  2. Step 2: Convert to fraction form
    3,889,105.92/5,366,956.32 = 2,170,208.16/x
  3. Step 3: Cross multiply
    3,889,105.92x = 5,366,956.32 × 2,170,208.16
  4. Step 4: Simplify right side
    3,889,105.92x = 11,647,412,400,027.57
  5. Step 5: Solve for x
    x = 11,647,412,400,027.57/3,889,105.92
  6. Step 6: Final answer
    x = 2,994,881.76

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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.