Finding the Fourth Proportional to 3,821,853.13, 5,274,302.84 and 2,190,575.30
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Solution
The fourth proportional to 3,821,853.13, 5,274,302.84 and 2,190,575.30 is: 3,023,077.32
Step by Step Solution
- Step 1: Write the proportion equation
3,821,853.13 : 5,274,302.84 = 2,190,575.30 : x - Step 2: Convert to fraction form
3,821,853.13/5,274,302.84 = 2,190,575.30/x - Step 3: Cross multiply
3,821,853.13x = 5,274,302.84 × 2,190,575.30 - Step 4: Simplify right side
3,821,853.13x = 11,553,757,505,128.78 - Step 5: Solve for x
x = 11,553,757,505,128.78/3,821,853.13 - Step 6: Final answer
x = 3,023,077.32
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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.