Finding the Fourth Proportional to 7,861,107.36, 11,791,529.12 and 3,540,754.56
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Solution
The fourth proportional to 7,861,107.36, 11,791,529.12 and 3,540,754.56 is: 5,311,072.42
Step by Step Solution
- Step 1: Write the proportion equation
7,861,107.36 : 11,791,529.12 = 3,540,754.56 : x - Step 2: Convert to fraction form
7,861,107.36/11,791,529.12 = 3,540,754.56/x - Step 3: Cross multiply
7,861,107.36x = 11,791,529.12 × 3,540,754.56 - Step 4: Simplify right side
7,861,107.36x = 41,750,910,501,012.78 - Step 5: Solve for x
x = 41,750,910,501,012.78/7,861,107.36 - Step 6: Final answer
x = 5,311,072.42
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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.