Finding the Fourth Proportional to 12,212,960.09, 18,273,651.44 and 7,270,915.19
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Solution
The fourth proportional to 12,212,960.09, 18,273,651.44 and 7,270,915.19 is: 10,879,112.74
Step by Step Solution
- Step 1: Write the proportion equation
12,212,960.09 : 18,273,651.44 = 7,270,915.19 : x - Step 2: Convert to fraction form
12,212,960.09/18,273,651.44 = 7,270,915.19/x - Step 3: Cross multiply
12,212,960.09x = 18,273,651.44 × 7,270,915.19 - Step 4: Simplify right side
12,212,960.09x = 132,866,169,704,138.52 - Step 5: Solve for x
x = 132,866,169,704,138.52/12,212,960.09 - Step 6: Final answer
x = 10,879,112.74
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1.5x scale
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.