Home / 15,391,865.92-21,231,520.32-10,164,922.16

Finding the Fourth Proportional to 15,391,865.92, 21,231,520.32 and 10,164,922.16

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Solution

The fourth proportional to 15,391,865.92, 21,231,520.32 and 10,164,922.16 is: 14,021,480.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,391,865.92 : 21,231,520.32 = 10,164,922.16 : x
  2. Step 2: Convert to fraction form
    15,391,865.92/21,231,520.32 = 10,164,922.16/x
  3. Step 3: Cross multiply
    15,391,865.92x = 21,231,520.32 × 10,164,922.16
  4. Step 4: Simplify right side
    15,391,865.92x = 215,816,751,391,258.31
  5. Step 5: Solve for x
    x = 215,816,751,391,258.31/15,391,865.92
  6. Step 6: Final answer
    x = 14,021,480.73

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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.