Finding the Fourth Proportional to 18,215,135.95, 27,322,821.37 and 7,286,238.60
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Solution
The fourth proportional to 18,215,135.95, 27,322,821.37 and 7,286,238.60 is: 10,929,404.88
Step by Step Solution
- Step 1: Write the proportion equation
18,215,135.95 : 27,322,821.37 = 7,286,238.60 : x - Step 2: Convert to fraction form
18,215,135.95/27,322,821.37 = 7,286,238.60/x - Step 3: Cross multiply
18,215,135.95x = 27,322,821.37 × 7,286,238.60 - Step 4: Simplify right side
18,215,135.95x = 199,080,595,726,998.88 - Step 5: Solve for x
x = 199,080,595,726,998.88/18,215,135.95 - Step 6: Final answer
x = 10,929,404.88
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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.