Finding the Fourth Proportional to 19,821,151.01, 29,728,183.14 and 12,611,268.11
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Solution
The fourth proportional to 19,821,151.01, 29,728,183.14 and 12,611,268.11 is: 18,914,647.68
Step by Step Solution
- Step 1: Write the proportion equation
19,821,151.01 : 29,728,183.14 = 12,611,268.11 : x - Step 2: Convert to fraction form
19,821,151.01/29,728,183.14 = 12,611,268.11/x - Step 3: Cross multiply
19,821,151.01x = 29,728,183.14 × 12,611,268.11 - Step 4: Simplify right side
19,821,151.01x = 374,910,087,853,080.75 - Step 5: Solve for x
x = 374,910,087,853,080.75/19,821,151.01 - Step 6: Final answer
x = 18,914,647.68
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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.