Finding the Fourth Proportional to 18,018,391.98, 27,016,133.49 and 15,286,880.88
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Solution
The fourth proportional to 18,018,391.98, 27,016,133.49 and 15,286,880.88 is: 22,920,603.29
Step by Step Solution
- Step 1: Write the proportion equation
18,018,391.98 : 27,016,133.49 = 15,286,880.88 : x - Step 2: Convert to fraction form
18,018,391.98/27,016,133.49 = 15,286,880.88/x - Step 3: Cross multiply
18,018,391.98x = 27,016,133.49 × 15,286,880.88 - Step 4: Simplify right side
18,018,391.98x = 412,992,414,499,808.69 - Step 5: Solve for x
x = 412,992,414,499,808.69/18,018,391.98 - Step 6: Final answer
x = 22,920,603.29
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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.