Finding the Fourth Proportional to 2,157,442.40, 3,236,163.60 and 2,129,448.80
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Solution
The fourth proportional to 2,157,442.40, 3,236,163.60 and 2,129,448.80 is: 3,194,173.20
Step by Step Solution
- Step 1: Write the proportion equation
2,157,442.40 : 3,236,163.60 = 2,129,448.80 : x - Step 2: Convert to fraction form
2,157,442.40/3,236,163.60 = 2,129,448.80/x - Step 3: Cross multiply
2,157,442.40x = 3,236,163.60 × 2,129,448.80 - Step 4: Simplify right side
2,157,442.40x = 6,891,244,694,623.68 - Step 5: Solve for x
x = 6,891,244,694,623.68/2,157,442.40 - Step 6: Final answer
x = 3,194,173.20
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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.