Finding the Fourth Proportional to 18,351,979.80, 27,527,969.70 and 6,384,715.80
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Solution
The fourth proportional to 18,351,979.80, 27,527,969.70 and 6,384,715.80 is: 9,577,073.70
Step by Step Solution
- Step 1: Write the proportion equation
18,351,979.80 : 27,527,969.70 = 6,384,715.80 : x - Step 2: Convert to fraction form
18,351,979.80/27,527,969.70 = 6,384,715.80/x - Step 3: Cross multiply
18,351,979.80x = 27,527,969.70 × 6,384,715.80 - Step 4: Simplify right side
18,351,979.80x = 175,758,263,085,511.25 - Step 5: Solve for x
x = 175,758,263,085,511.25/18,351,979.80 - Step 6: Final answer
x = 9,577,073.70
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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.