Finding the Fourth Proportional to 11,343,311.70, 16,999,415.55 and 7,287,350.10
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Solution
The fourth proportional to 11,343,311.70, 16,999,415.55 and 7,287,350.10 is: 10,921,033.99
Step by Step Solution
- Step 1: Write the proportion equation
11,343,311.70 : 16,999,415.55 = 7,287,350.10 : x - Step 2: Convert to fraction form
11,343,311.70/16,999,415.55 = 7,287,350.10/x - Step 3: Cross multiply
11,343,311.70x = 16,999,415.55 × 7,287,350.10 - Step 4: Simplify right side
11,343,311.70x = 123,880,692,608,234.05 - Step 5: Solve for x
x = 123,880,692,608,234.05/11,343,311.70 - Step 6: Final answer
x = 10,921,033.99
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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.