Finding the Fourth Proportional to 5,453,486.68, 7,529,817.66 and 3,520,876.12
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Solution
The fourth proportional to 5,453,486.68, 7,529,817.66 and 3,520,876.12 is: 4,861,395.42
Step by Step Solution
- Step 1: Write the proportion equation
5,453,486.68 : 7,529,817.66 = 3,520,876.12 : x - Step 2: Convert to fraction form
5,453,486.68/7,529,817.66 = 3,520,876.12/x - Step 3: Cross multiply
5,453,486.68x = 7,529,817.66 × 3,520,876.12 - Step 4: Simplify right side
5,453,486.68x = 26,511,555,187,048.28 - Step 5: Solve for x
x = 26,511,555,187,048.28/5,453,486.68 - Step 6: Final answer
x = 4,861,395.42
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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.