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Finding the Fourth Proportional to 15,989,183.78, 23,978,404.96 and 5,203,948.12

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Solution

The fourth proportional to 15,989,183.78, 23,978,404.96 and 5,203,948.12 is: 7,804,174.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,989,183.78 : 23,978,404.96 = 5,203,948.12 : x
  2. Step 2: Convert to fraction form
    15,989,183.78/23,978,404.96 = 5,203,948.12/x
  3. Step 3: Cross multiply
    15,989,183.78x = 23,978,404.96 × 5,203,948.12
  4. Step 4: Simplify right side
    15,989,183.78x = 124,782,375,339,234.78
  5. Step 5: Solve for x
    x = 124,782,375,339,234.78/15,989,183.78
  6. Step 6: Final answer
    x = 7,804,174.19

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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.