Finding the Fourth Proportional to 18,467,642.72, 27,702,855.84 and 5,512,770.08
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Solution
The fourth proportional to 18,467,642.72, 27,702,855.84 and 5,512,770.08 is: 8,269,570.57
Step by Step Solution
- Step 1: Write the proportion equation
18,467,642.72 : 27,702,855.84 = 5,512,770.08 : x - Step 2: Convert to fraction form
18,467,642.72/27,702,855.84 = 5,512,770.08/x - Step 3: Cross multiply
18,467,642.72x = 27,702,855.84 × 5,512,770.08 - Step 4: Simplify right side
18,467,642.72x = 152,719,474,805,305.28 - Step 5: Solve for x
x = 152,719,474,805,305.28/18,467,642.72 - Step 6: Final answer
x = 8,269,570.57
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.