Finding the Fourth Proportional to 3,872,074.22, 5,343,591.84 and 2,129,817.14
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Solution
The fourth proportional to 3,872,074.22, 5,343,591.84 and 2,129,817.14 is: 2,939,218.84
Step by Step Solution
- Step 1: Write the proportion equation
3,872,074.22 : 5,343,591.84 = 2,129,817.14 : x - Step 2: Convert to fraction form
3,872,074.22/5,343,591.84 = 2,129,817.14/x - Step 3: Cross multiply
3,872,074.22x = 5,343,591.84 × 2,129,817.14 - Step 4: Simplify right side
3,872,074.22x = 11,380,873,489,996.14 - Step 5: Solve for x
x = 11,380,873,489,996.14/3,872,074.22 - Step 6: Final answer
x = 2,939,218.84
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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.