Finding the Fourth Proportional to 7,741,122.60, 11,597,687.10 and 6,621,378.60
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Solution
The fourth proportional to 7,741,122.60, 11,597,687.10 and 6,621,378.60 is: 9,920,095.72
Step by Step Solution
- Step 1: Write the proportion equation
7,741,122.60 : 11,597,687.10 = 6,621,378.60 : x - Step 2: Convert to fraction form
7,741,122.60/11,597,687.10 = 6,621,378.60/x - Step 3: Cross multiply
7,741,122.60x = 11,597,687.10 × 6,621,378.60 - Step 4: Simplify right side
7,741,122.60x = 76,792,677,173,436.05 - Step 5: Solve for x
x = 76,792,677,173,436.05/7,741,122.60 - Step 6: Final answer
x = 9,920,095.72
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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.