Home / 13,431,745.08-20,147,430.06-7,662,165.75

Finding the Fourth Proportional to 13,431,745.08, 20,147,430.06 and 7,662,165.75

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Solution

The fourth proportional to 13,431,745.08, 20,147,430.06 and 7,662,165.75 is: 11,493,141.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431,745.08 : 20,147,430.06 = 7,662,165.75 : x
  2. Step 2: Convert to fraction form
    13,431,745.08/20,147,430.06 = 7,662,165.75/x
  3. Step 3: Cross multiply
    13,431,745.08x = 20,147,430.06 × 7,662,165.75
  4. Step 4: Simplify right side
    13,431,745.08x = 154,372,948,556,252.44
  5. Step 5: Solve for x
    x = 154,372,948,556,252.44/13,431,745.08
  6. Step 6: Final answer
    x = 11,493,141.63

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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.