Finding the Fourth Proportional to 49,207,847.70, 73,811,771.55 and 20,474,604.30
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Solution
The fourth proportional to 49,207,847.70, 73,811,771.55 and 20,474,604.30 is: 30,711,906.45
Step by Step Solution
- Step 1: Write the proportion equation
49,207,847.70 : 73,811,771.55 = 20,474,604.30 : x - Step 2: Convert to fraction form
49,207,847.70/73,811,771.55 = 20,474,604.30/x - Step 3: Cross multiply
49,207,847.70x = 73,811,771.55 × 20,474,604.30 - Step 4: Simplify right side
49,207,847.70x = 1,511,266,815,168,247.75 - Step 5: Solve for x
x = 1,511,266,815,168,247.75/49,207,847.70 - Step 6: Final answer
x = 30,711,906.45
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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.