Finding the Fourth Proportional to 18,192,872.10, 27,289,745.55 and 5,413,793.70
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Solution
The fourth proportional to 18,192,872.10, 27,289,745.55 and 5,413,793.70 is: 8,120,820.71
Step by Step Solution
- Step 1: Write the proportion equation
18,192,872.10 : 27,289,745.55 = 5,413,793.70 : x - Step 2: Convert to fraction form
18,192,872.10/27,289,745.55 = 5,413,793.70/x - Step 3: Cross multiply
18,192,872.10x = 27,289,745.55 × 5,413,793.70 - Step 4: Simplify right side
18,192,872.10x = 147,741,052,533,193.03 - Step 5: Solve for x
x = 147,741,052,533,193.03/18,192,872.10 - Step 6: Final answer
x = 8,120,820.71
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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.