Finding the Fourth Proportional to 5,720,742.96, 7,892,697.84 and 3,239,623.68
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Solution
The fourth proportional to 5,720,742.96, 7,892,697.84 and 3,239,623.68 is: 4,469,589.18
Step by Step Solution
- Step 1: Write the proportion equation
5,720,742.96 : 7,892,697.84 = 3,239,623.68 : x - Step 2: Convert to fraction form
5,720,742.96/7,892,697.84 = 3,239,623.68/x - Step 3: Cross multiply
5,720,742.96x = 7,892,697.84 × 3,239,623.68 - Step 4: Simplify right side
5,720,742.96x = 25,569,370,821,548.85 - Step 5: Solve for x
x = 25,569,370,821,548.85/5,720,742.96 - Step 6: Final answer
x = 4,469,589.18
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.