Home / 13,286,628.27-18,331,725.47-8,647,243.11

Finding the Fourth Proportional to 13,286,628.27, 18,331,725.47 and 8,647,243.11

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Solution

The fourth proportional to 13,286,628.27, 18,331,725.47 and 8,647,243.11 is: 11,930,708.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286,628.27 : 18,331,725.47 = 8,647,243.11 : x
  2. Step 2: Convert to fraction form
    13,286,628.27/18,331,725.47 = 8,647,243.11/x
  3. Step 3: Cross multiply
    13,286,628.27x = 18,331,725.47 × 8,647,243.11
  4. Step 4: Simplify right side
    13,286,628.27x = 158,518,886,721,632.78
  5. Step 5: Solve for x
    x = 158,518,886,721,632.78/13,286,628.27
  6. Step 6: Final answer
    x = 11,930,708.34

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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.