Finding the Fourth Proportional to 43,979,672.40, 65,995,234.20 and 18,418,534.80
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Solution
The fourth proportional to 43,979,672.40, 65,995,234.20 and 18,418,534.80 is: 27,638,575.99
Step by Step Solution
- Step 1: Write the proportion equation
43,979,672.40 : 65,995,234.20 = 18,418,534.80 : x - Step 2: Convert to fraction form
43,979,672.40/65,995,234.20 = 18,418,534.80/x - Step 3: Cross multiply
43,979,672.40x = 65,995,234.20 × 18,418,534.80 - Step 4: Simplify right side
43,979,672.40x = 1,215,535,517,746,850.25 - Step 5: Solve for x
x = 1,215,535,517,746,850.25/43,979,672.40 - Step 6: Final answer
x = 27,638,575.99
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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.