Finding the Fourth Proportional to 5,290,578.26, 7,301,568.80 and 2,998,492.91
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Solution
The fourth proportional to 5,290,578.26, 7,301,568.80 and 2,998,492.91 is: 4,138,243.72
Step by Step Solution
- Step 1: Write the proportion equation
5,290,578.26 : 7,301,568.80 = 2,998,492.91 : x - Step 2: Convert to fraction form
5,290,578.26/7,301,568.80 = 2,998,492.91/x - Step 3: Cross multiply
5,290,578.26x = 7,301,568.80 × 2,998,492.91 - Step 4: Simplify right side
5,290,578.26x = 21,893,702,278,677.21 - Step 5: Solve for x
x = 21,893,702,278,677.21/5,290,578.26 - Step 6: Final answer
x = 4,138,243.72
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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.