Finding the Fourth Proportional to 39,203,738.75, 54,156,482.57 and 31,414,991.13
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Solution
The fourth proportional to 39,203,738.75, 54,156,482.57 and 31,414,991.13 is: 43,397,019.62
Step by Step Solution
- Step 1: Write the proportion equation
39,203,738.75 : 54,156,482.57 = 31,414,991.13 : x - Step 2: Convert to fraction form
39,203,738.75/54,156,482.57 = 31,414,991.13/x - Step 3: Cross multiply
39,203,738.75x = 54,156,482.57 × 31,414,991.13 - Step 4: Simplify right side
39,203,738.75x = 1,701,325,419,647,087 - Step 5: Solve for x
x = 1,701,325,419,647,087/39,203,738.75 - Step 6: Final answer
x = 43,397,019.62
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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.