Finding the Fourth Proportional to 5,383,538.51, 7,431,771.08 and 3,318,923.03
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Solution
The fourth proportional to 5,383,538.51, 7,431,771.08 and 3,318,923.03 is: 4,581,647.58
Step by Step Solution
- Step 1: Write the proportion equation
5,383,538.51 : 7,431,771.08 = 3,318,923.03 : x - Step 2: Convert to fraction form
5,383,538.51/7,431,771.08 = 3,318,923.03/x - Step 3: Cross multiply
5,383,538.51x = 7,431,771.08 × 3,318,923.03 - Step 4: Simplify right side
5,383,538.51x = 24,665,476,191,099.97 - Step 5: Solve for x
x = 24,665,476,191,099.97/5,383,538.51 - Step 6: Final answer
x = 4,581,647.58
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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.