Finding the Fourth Proportional to 5,419,387.11, 7,478,066.84 and 2,971,353.97
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Solution
The fourth proportional to 5,419,387.11, 7,478,066.84 and 2,971,353.97 is: 4,100,091.60
Step by Step Solution
- Step 1: Write the proportion equation
5,419,387.11 : 7,478,066.84 = 2,971,353.97 : x - Step 2: Convert to fraction form
5,419,387.11/7,478,066.84 = 2,971,353.97/x - Step 3: Cross multiply
5,419,387.11x = 7,478,066.84 × 2,971,353.97 - Step 4: Simplify right side
5,419,387.11x = 22,219,983,581,692.57 - Step 5: Solve for x
x = 22,219,983,581,692.57/5,419,387.11 - Step 6: Final answer
x = 4,100,091.60
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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.