Home / 12,313,128.33-16,987,974.48-7,967,712.42

Finding the Fourth Proportional to 12,313,128.33, 16,987,974.48 and 7,967,712.42

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Solution

The fourth proportional to 12,313,128.33, 16,987,974.48 and 7,967,712.42 is: 10,992,762.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,313,128.33 : 16,987,974.48 = 7,967,712.42 : x
  2. Step 2: Convert to fraction form
    12,313,128.33/16,987,974.48 = 7,967,712.42/x
  3. Step 3: Cross multiply
    12,313,128.33x = 16,987,974.48 × 7,967,712.42
  4. Step 4: Simplify right side
    12,313,128.33x = 135,355,295,254,939.05
  5. Step 5: Solve for x
    x = 135,355,295,254,939.05/12,313,128.33
  6. Step 6: Final answer
    x = 10,992,762.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.