Finding the Fourth Proportional to 3,987,999.24, 5,503,410.90 and 2,177,163.24
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Solution
The fourth proportional to 3,987,999.24, 5,503,410.90 and 2,177,163.24 is: 3,004,469.96
Step by Step Solution
- Step 1: Write the proportion equation
3,987,999.24 : 5,503,410.90 = 2,177,163.24 : x - Step 2: Convert to fraction form
3,987,999.24/5,503,410.90 = 2,177,163.24/x - Step 3: Cross multiply
3,987,999.24x = 5,503,410.90 × 2,177,163.24 - Step 4: Simplify right side
3,987,999.24x = 11,981,823,906,095.32 - Step 5: Solve for x
x = 11,981,823,906,095.32/3,987,999.24 - Step 6: Final answer
x = 3,004,469.96
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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.