Home / 13,431,339.90-20,147,009.85-11,352,815.10

Finding the Fourth Proportional to 13,431,339.90, 20,147,009.85 and 11,352,815.10

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Solution

The fourth proportional to 13,431,339.90, 20,147,009.85 and 11,352,815.10 is: 17,029,222.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431,339.90 : 20,147,009.85 = 11,352,815.10 : x
  2. Step 2: Convert to fraction form
    13,431,339.90/20,147,009.85 = 11,352,815.10/x
  3. Step 3: Cross multiply
    13,431,339.90x = 20,147,009.85 × 11,352,815.10
  4. Step 4: Simplify right side
    13,431,339.90x = 228,725,277,644,928.75
  5. Step 5: Solve for x
    x = 228,725,277,644,928.75/13,431,339.90
  6. Step 6: Final answer
    x = 17,029,222.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.