Finding the Fourth Proportional to 21,019,382.43, 29,006,956.38 and 11,726,874.09
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Solution
The fourth proportional to 21,019,382.43, 29,006,956.38 and 11,726,874.09 is: 16,183,202.64
Step by Step Solution
- Step 1: Write the proportion equation
21,019,382.43 : 29,006,956.38 = 11,726,874.09 : x - Step 2: Convert to fraction form
21,019,382.43/29,006,956.38 = 11,726,874.09/x - Step 3: Cross multiply
21,019,382.43x = 29,006,956.38 × 11,726,874.09 - Step 4: Simplify right side
21,019,382.43x = 340,160,925,202,382.19 - Step 5: Solve for x
x = 340,160,925,202,382.19/21,019,382.43 - Step 6: Final answer
x = 16,183,202.64
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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.