Finding the Fourth Proportional to 8,389,183.74, 12,522,531.42 and 7,198,755.90
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Solution
The fourth proportional to 8,389,183.74, 12,522,531.42 and 7,198,755.90 is: 10,745,580.23
Step by Step Solution
- Step 1: Write the proportion equation
8,389,183.74 : 12,522,531.42 = 7,198,755.90 : x - Step 2: Convert to fraction form
8,389,183.74/12,522,531.42 = 7,198,755.90/x - Step 3: Cross multiply
8,389,183.74x = 12,522,531.42 × 7,198,755.90 - Step 4: Simplify right side
8,389,183.74x = 90,146,646,942,660.38 - Step 5: Solve for x
x = 90,146,646,942,660.38/8,389,183.74 - Step 6: Final answer
x = 10,745,580.23
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.