Finding the Fourth Proportional to 18,364,517.20, 27,547,812.60 and 5,585,438.80
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Solution
The fourth proportional to 18,364,517.20, 27,547,812.60 and 5,585,438.80 is: 8,378,473.54
Step by Step Solution
- Step 1: Write the proportion equation
18,364,517.20 : 27,547,812.60 = 5,585,438.80 : x - Step 2: Convert to fraction form
18,364,517.20/27,547,812.60 = 5,585,438.80/x - Step 3: Cross multiply
18,364,517.20x = 27,547,812.60 × 5,585,438.80 - Step 4: Simplify right side
18,364,517.20x = 153,866,621,351,168.88 - Step 5: Solve for x
x = 153,866,621,351,168.88/18,364,517.20 - Step 6: Final answer
x = 8,378,473.54
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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.