Finding the Fourth Proportional to 18,207,266.40, 27,321,397.20 and 6,855,861.60
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Solution
The fourth proportional to 18,207,266.40, 27,321,397.20 and 6,855,861.60 is: 10,287,745.22
Step by Step Solution
- Step 1: Write the proportion equation
18,207,266.40 : 27,321,397.20 = 6,855,861.60 : x - Step 2: Convert to fraction form
18,207,266.40/27,321,397.20 = 6,855,861.60/x - Step 3: Cross multiply
18,207,266.40x = 27,321,397.20 × 6,855,861.60 - Step 4: Simplify right side
18,207,266.40x = 187,311,717,921,827.50 - Step 5: Solve for x
x = 187,311,717,921,827.50/18,207,266.40 - Step 6: Final answer
x = 10,287,745.22
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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.