Finding the Fourth Proportional to 49,207,821.20, 73,811,731.80 and 20,474,577.80
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Solution
The fourth proportional to 49,207,821.20, 73,811,731.80 and 20,474,577.80 is: 30,711,866.70
Step by Step Solution
- Step 1: Write the proportion equation
49,207,821.20 : 73,811,731.80 = 20,474,577.80 : x - Step 2: Convert to fraction form
49,207,821.20/73,811,731.80 = 20,474,577.80/x - Step 3: Cross multiply
49,207,821.20x = 73,811,731.80 × 20,474,577.80 - Step 4: Simplify right side
49,207,821.20x = 1,511,264,045,291,834 - Step 5: Solve for x
x = 1,511,264,045,291,834/49,207,821.20 - Step 6: Final answer
x = 30,711,866.70
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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.