Finding the Fourth Proportional to 3,763,536.62, 5,193,786.78 and 2,131,943.48
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Solution
The fourth proportional to 3,763,536.62, 5,193,786.78 and 2,131,943.48 is: 2,942,142.19
Step by Step Solution
- Step 1: Write the proportion equation
3,763,536.62 : 5,193,786.78 = 2,131,943.48 : x - Step 2: Convert to fraction form
3,763,536.62/5,193,786.78 = 2,131,943.48/x - Step 3: Cross multiply
3,763,536.62x = 5,193,786.78 × 2,131,943.48 - Step 4: Simplify right side
3,763,536.62x = 11,072,859,862,131.20 - Step 5: Solve for x
x = 11,072,859,862,131.20/3,763,536.62 - Step 6: Final answer
x = 2,942,142.19
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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.