Home / 13,321,454.81-18,383,760.97-7,814,923.34

Finding the Fourth Proportional to 13,321,454.81, 18,383,760.97 and 7,814,923.34

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Solution

The fourth proportional to 13,321,454.81, 18,383,760.97 and 7,814,923.34 is: 10,784,684.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321,454.81 : 18,383,760.97 = 7,814,923.34 : x
  2. Step 2: Convert to fraction form
    13,321,454.81/18,383,760.97 = 7,814,923.34/x
  3. Step 3: Cross multiply
    13,321,454.81x = 18,383,760.97 × 7,814,923.34
  4. Step 4: Simplify right side
    13,321,454.81x = 143,667,682,707,856.16
  5. Step 5: Solve for x
    x = 143,667,682,707,856.16/13,321,454.81
  6. Step 6: Final answer
    x = 10,784,684.16

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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.