Finding the Fourth Proportional to 3,825,031.88, 5,278,660.11 and 2,106,213.91
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Solution
The fourth proportional to 3,825,031.88, 5,278,660.11 and 2,106,213.91 is: 2,906,639.13
Step by Step Solution
- Step 1: Write the proportion equation
3,825,031.88 : 5,278,660.11 = 2,106,213.91 : x - Step 2: Convert to fraction form
3,825,031.88/5,278,660.11 = 2,106,213.91/x - Step 3: Cross multiply
3,825,031.88x = 5,278,660.11 × 2,106,213.91 - Step 4: Simplify right side
3,825,031.88x = 11,117,987,349,844.13 - Step 5: Solve for x
x = 11,117,987,349,844.13/3,825,031.88 - Step 6: Final answer
x = 2,906,639.13
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1.5x scale
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.