Home / 13,321,455.56-18,383,762-7,814,924.09

Finding the Fourth Proportional to 13,321,455.56, 18,383,762 and 7,814,924.09

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Solution

The fourth proportional to 13,321,455.56, 18,383,762 and 7,814,924.09 is: 10,784,685.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321,455.56 : 18,383,762 = 7,814,924.09 : x
  2. Step 2: Convert to fraction form
    13,321,455.56/18,383,762 = 7,814,924.09/x
  3. Step 3: Cross multiply
    13,321,455.56x = 18,383,762 × 7,814,924.09
  4. Step 4: Simplify right side
    13,321,455.56x = 143,667,704,518,626.56
  5. Step 5: Solve for x
    x = 143,667,704,518,626.56/13,321,455.56
  6. Step 6: Final answer
    x = 10,784,685.19

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1.5x scale

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.