Finding the Fourth Proportional to 8,212,496.70, 12,318,609.27 and 2,455,243.62
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Solution
The fourth proportional to 8,212,496.70, 12,318,609.27 and 2,455,243.62 is: 3,682,824.84
Step by Step Solution
- Step 1: Write the proportion equation
8,212,496.70 : 12,318,609.27 = 2,455,243.62 : x - Step 2: Convert to fraction form
8,212,496.70/12,318,609.27 = 2,455,243.62/x - Step 3: Cross multiply
8,212,496.70x = 12,318,609.27 × 2,455,243.62 - Step 4: Simplify right side
8,212,496.70x = 30,245,186,817,440.36 - Step 5: Solve for x
x = 30,245,186,817,440.36/8,212,496.70 - Step 6: Final answer
x = 3,682,824.84
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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.