Finding the Fourth Proportional to 5,413,992.19, 8,121,855.18 and 2,175,523.90
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Solution
The fourth proportional to 5,413,992.19, 8,121,855.18 and 2,175,523.90 is: 3,263,634.19
Step by Step Solution
- Step 1: Write the proportion equation
5,413,992.19 : 8,121,855.18 = 2,175,523.90 : x - Step 2: Convert to fraction form
5,413,992.19/8,121,855.18 = 2,175,523.90/x - Step 3: Cross multiply
5,413,992.19x = 8,121,855.18 × 2,175,523.90 - Step 4: Simplify right side
5,413,992.19x = 17,669,290,015,819.53 - Step 5: Solve for x
x = 17,669,290,015,819.53/5,413,992.19 - Step 6: Final answer
x = 3,263,634.19
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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.