Home / 5,185,941.78-7,778,850.09-1,347,424.54

Finding the Fourth Proportional to 5,185,941.78, 7,778,850.09 and 1,347,424.54

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Solution

The fourth proportional to 5,185,941.78, 7,778,850.09 and 1,347,424.54 is: 2,021,120.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185,941.78 : 7,778,850.09 = 1,347,424.54 : x
  2. Step 2: Convert to fraction form
    5,185,941.78/7,778,850.09 = 1,347,424.54/x
  3. Step 3: Cross multiply
    5,185,941.78x = 7,778,850.09 × 1,347,424.54
  4. Step 4: Simplify right side
    5,185,941.78x = 10,481,413,504,247.21
  5. Step 5: Solve for x
    x = 10,481,413,504,247.21/5,185,941.78
  6. Step 6: Final answer
    x = 2,021,120.55

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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.