Finding the Fourth Proportional to 18,286,857.75, 27,430,231.91 and 4,639,977.75
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Solution
The fourth proportional to 18,286,857.75, 27,430,231.91 and 4,639,977.75 is: 6,959,952.74
Step by Step Solution
- Step 1: Write the proportion equation
18,286,857.75 : 27,430,231.91 = 4,639,977.75 : x - Step 2: Convert to fraction form
18,286,857.75/27,430,231.91 = 4,639,977.75/x - Step 3: Cross multiply
18,286,857.75x = 27,430,231.91 × 4,639,977.75 - Step 4: Simplify right side
18,286,857.75x = 127,275,665,716,540.12 - Step 5: Solve for x
x = 127,275,665,716,540.12/18,286,857.75 - Step 6: Final answer
x = 6,959,952.74
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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.