Finding the Fourth Proportional to 5,215,310.08, 7,197,865.77 and 2,892,716.08
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Solution
The fourth proportional to 5,215,310.08, 7,197,865.77 and 2,892,716.08 is: 3,992,357.45
Step by Step Solution
- Step 1: Write the proportion equation
5,215,310.08 : 7,197,865.77 = 2,892,716.08 : x - Step 2: Convert to fraction form
5,215,310.08/7,197,865.77 = 2,892,716.08/x - Step 3: Cross multiply
5,215,310.08x = 7,197,865.77 × 2,892,716.08 - Step 4: Simplify right side
5,215,310.08x = 20,821,382,054,560.58 - Step 5: Solve for x
x = 20,821,382,054,560.58/5,215,310.08 - Step 6: Final answer
x = 3,992,357.45
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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.