Finding the Fourth Proportional to 8,085,114.30, 12,129,421.05 and 2,405,912.70
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Solution
The fourth proportional to 8,085,114.30, 12,129,421.05 and 2,405,912.70 is: 3,609,389.68
Step by Step Solution
- Step 1: Write the proportion equation
8,085,114.30 : 12,129,421.05 = 2,405,912.70 : x - Step 2: Convert to fraction form
8,085,114.30/12,129,421.05 = 2,405,912.70/x - Step 3: Cross multiply
8,085,114.30x = 12,129,421.05 × 2,405,912.70 - Step 4: Simplify right side
8,085,114.30x = 29,182,328,147,842.34 - Step 5: Solve for x
x = 29,182,328,147,842.34/8,085,114.30 - Step 6: Final answer
x = 3,609,389.68
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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.