Finding the Fourth Proportional to 5,741,860.38, 7,923,694.50 and 3,128,473.28
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Solution
The fourth proportional to 5,741,860.38, 7,923,694.50 and 3,128,473.28 is: 4,317,253.44
Step by Step Solution
- Step 1: Write the proportion equation
5,741,860.38 : 7,923,694.50 = 3,128,473.28 : x - Step 2: Convert to fraction form
5,741,860.38/7,923,694.50 = 3,128,473.28/x - Step 3: Cross multiply
5,741,860.38x = 7,923,694.50 × 3,128,473.28 - Step 4: Simplify right side
5,741,860.38x = 24,789,066,482,514.49 - Step 5: Solve for x
x = 24,789,066,482,514.49/5,741,860.38 - Step 6: Final answer
x = 4,317,253.44
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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.