Home / 13,438,079.82-20,145,183.57-5,238,832.14

Finding the Fourth Proportional to 13,438,079.82, 20,145,183.57 and 5,238,832.14

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Solution

The fourth proportional to 13,438,079.82, 20,145,183.57 and 5,238,832.14 is: 7,853,594.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,438,079.82 : 20,145,183.57 = 5,238,832.14 : x
  2. Step 2: Convert to fraction form
    13,438,079.82/20,145,183.57 = 5,238,832.14/x
  3. Step 3: Cross multiply
    13,438,079.82x = 20,145,183.57 × 5,238,832.14
  4. Step 4: Simplify right side
    13,438,079.82x = 105,537,235,152,715.94
  5. Step 5: Solve for x
    x = 105,537,235,152,715.94/13,438,079.82
  6. Step 6: Final answer
    x = 7,853,594.90

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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.