Finding the Fourth Proportional to 20,246,612.20, 30,372,582.30 and 7,476,087.40
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Solution
The fourth proportional to 20,246,612.20, 30,372,582.30 and 7,476,087.40 is: 11,215,114.79
Step by Step Solution
- Step 1: Write the proportion equation
20,246,612.20 : 30,372,582.30 = 7,476,087.40 : x - Step 2: Convert to fraction form
20,246,612.20/30,372,582.30 = 7,476,087.40/x - Step 3: Cross multiply
20,246,612.20x = 30,372,582.30 × 7,476,087.40 - Step 4: Simplify right side
20,246,612.20x = 227,068,079,838,493.03 - Step 5: Solve for x
x = 227,068,079,838,493.03/20,246,612.20 - Step 6: Final answer
x = 11,215,114.79
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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.