Finding the Fourth Proportional to 18,626,555.68, 27,939,841.26 and 8,379,446.44
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Solution
The fourth proportional to 18,626,555.68, 27,939,841.26 and 8,379,446.44 is: 12,569,173.14
Step by Step Solution
- Step 1: Write the proportion equation
18,626,555.68 : 27,939,841.26 = 8,379,446.44 : x - Step 2: Convert to fraction form
18,626,555.68/27,939,841.26 = 8,379,446.44/x - Step 3: Cross multiply
18,626,555.68x = 27,939,841.26 × 8,379,446.44 - Step 4: Simplify right side
18,626,555.68x = 234,120,403,380,272.12 - Step 5: Solve for x
x = 234,120,403,380,272.12/18,626,555.68 - Step 6: Final answer
x = 12,569,173.14
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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.