Finding the Fourth Proportional to 49,207,740.70, 73,811,611.05 and 20,474,497.30
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Solution
The fourth proportional to 49,207,740.70, 73,811,611.05 and 20,474,497.30 is: 30,711,745.95
Step by Step Solution
- Step 1: Write the proportion equation
49,207,740.70 : 73,811,611.05 = 20,474,497.30 : x - Step 2: Convert to fraction form
49,207,740.70/73,811,611.05 = 20,474,497.30/x - Step 3: Cross multiply
49,207,740.70x = 73,811,611.05 × 20,474,497.30 - Step 4: Simplify right side
49,207,740.70x = 1,511,255,631,151,875.25 - Step 5: Solve for x
x = 1,511,255,631,151,875.25/49,207,740.70 - Step 6: Final answer
x = 30,711,745.95
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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.