Finding the Fourth Proportional to 18,122,107.62, 27,169,583.94 and 10,931,965.50
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Solution
The fourth proportional to 18,122,107.62, 27,169,583.94 and 10,931,965.50 is: 16,389,757.78
Step by Step Solution
- Step 1: Write the proportion equation
18,122,107.62 : 27,169,583.94 = 10,931,965.50 : x - Step 2: Convert to fraction form
18,122,107.62/27,169,583.94 = 10,931,965.50/x - Step 3: Cross multiply
18,122,107.62x = 27,169,583.94 × 10,931,965.50 - Step 4: Simplify right side
18,122,107.62x = 297,016,954,349,358 - Step 5: Solve for x
x = 297,016,954,349,358/18,122,107.62 - Step 6: Final answer
x = 16,389,757.78
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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.