Finding the Fourth Proportional to 8,543,943.79, 11,790,622.74 and 4,676,431.12
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Solution
The fourth proportional to 8,543,943.79, 11,790,622.74 and 4,676,431.12 is: 6,453,464.17
Step by Step Solution
- Step 1: Write the proportion equation
8,543,943.79 : 11,790,622.74 = 4,676,431.12 : x - Step 2: Convert to fraction form
8,543,943.79/11,790,622.74 = 4,676,431.12/x - Step 3: Cross multiply
8,543,943.79x = 11,790,622.74 × 4,676,431.12 - Step 4: Simplify right side
8,543,943.79x = 55,138,035,093,575.73 - Step 5: Solve for x
x = 55,138,035,093,575.73/8,543,943.79 - Step 6: Final answer
x = 6,453,464.17
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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.