Finding the Fourth Proportional to 18,468,622.80, 27,702,934.20 and 15,322,894.80
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Solution
The fourth proportional to 18,468,622.80, 27,702,934.20 and 15,322,894.80 is: 22,984,342.20
Step by Step Solution
- Step 1: Write the proportion equation
18,468,622.80 : 27,702,934.20 = 15,322,894.80 : x - Step 2: Convert to fraction form
18,468,622.80/27,702,934.20 = 15,322,894.80/x - Step 3: Cross multiply
18,468,622.80x = 27,702,934.20 × 15,322,894.80 - Step 4: Simplify right side
18,468,622.80x = 424,489,146,397,922.19 - Step 5: Solve for x
x = 424,489,146,397,922.19/18,468,622.80 - Step 6: Final answer
x = 22,984,342.20
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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.