Home / 13,257,429.96-18,303,658.55-9,078,107.79

Finding the Fourth Proportional to 13,257,429.96, 18,303,658.55 and 9,078,107.79

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Solution

The fourth proportional to 13,257,429.96, 18,303,658.55 and 9,078,107.79 is: 12,533,544.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257,429.96 : 18,303,658.55 = 9,078,107.79 : x
  2. Step 2: Convert to fraction form
    13,257,429.96/18,303,658.55 = 9,078,107.79/x
  3. Step 3: Cross multiply
    13,257,429.96x = 18,303,658.55 × 9,078,107.79
  4. Step 4: Simplify right side
    13,257,429.96x = 166,162,585,268,255.09
  5. Step 5: Solve for x
    x = 166,162,585,268,255.09/13,257,429.96
  6. Step 6: Final answer
    x = 12,533,544.27

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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.