Finding the Fourth Proportional to 18,441,421.40, 27,661,872.90 and 8,344,026.20
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Solution
The fourth proportional to 18,441,421.40, 27,661,872.90 and 8,344,026.20 is: 12,515,922.02
Step by Step Solution
- Step 1: Write the proportion equation
18,441,421.40 : 27,661,872.90 = 8,344,026.20 : x - Step 2: Convert to fraction form
18,441,421.40/27,661,872.90 = 8,344,026.20/x - Step 3: Cross multiply
18,441,421.40x = 27,661,872.90 × 8,344,026.20 - Step 4: Simplify right side
18,441,421.40x = 230,811,392,218,669.97 - Step 5: Solve for x
x = 230,811,392,218,669.97/18,441,421.40 - Step 6: Final answer
x = 12,515,922.02
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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.