Finding the Fourth Proportional to 3,987,913.48, 5,503,292.60 and 2,177,077.48
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Solution
The fourth proportional to 3,987,913.48, 5,503,292.60 and 2,177,077.48 is: 3,004,351.64
Step by Step Solution
- Step 1: Write the proportion equation
3,987,913.48 : 5,503,292.60 = 2,177,077.48 : x - Step 2: Convert to fraction form
3,987,913.48/5,503,292.60 = 2,177,077.48/x - Step 3: Cross multiply
3,987,913.48x = 5,503,292.60 × 2,177,077.48 - Step 4: Simplify right side
3,987,913.48x = 11,981,094,385,310.65 - Step 5: Solve for x
x = 11,981,094,385,310.65/3,987,913.48 - Step 6: Final answer
x = 3,004,351.64
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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.