Finding the Fourth Proportional to 8,691,279.10, 11,994,571.38 and 5,745,978.99
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Solution
The fourth proportional to 8,691,279.10, 11,994,571.38 and 5,745,978.99 is: 7,929,851.80
Step by Step Solution
- Step 1: Write the proportion equation
8,691,279.10 : 11,994,571.38 = 5,745,978.99 : x - Step 2: Convert to fraction form
8,691,279.10/11,994,571.38 = 5,745,978.99/x - Step 3: Cross multiply
8,691,279.10x = 11,994,571.38 × 5,745,978.99 - Step 4: Simplify right side
8,691,279.10x = 68,920,555,198,817.46 - Step 5: Solve for x
x = 68,920,555,198,817.46/8,691,279.10 - Step 6: Final answer
x = 7,929,851.80
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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.