Finding the Fourth Proportional to 18,364,519.20, 27,547,815.60 and 5,585,440.80
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Solution
The fourth proportional to 18,364,519.20, 27,547,815.60 and 5,585,440.80 is: 8,378,476.54
Step by Step Solution
- Step 1: Write the proportion equation
18,364,519.20 : 27,547,815.60 = 5,585,440.80 : x - Step 2: Convert to fraction form
18,364,519.20/27,547,815.60 = 5,585,440.80/x - Step 3: Cross multiply
18,364,519.20x = 27,547,815.60 × 5,585,440.80 - Step 4: Simplify right side
18,364,519.20x = 153,866,693,203,116.47 - Step 5: Solve for x
x = 153,866,693,203,116.47/18,364,519.20 - Step 6: Final answer
x = 8,378,476.54
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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.