Finding the Fourth Proportional to 18,234,492.60, 27,351,738.90 and 13,982,964.60
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Solution
The fourth proportional to 18,234,492.60, 27,351,738.90 and 13,982,964.60 is: 20,974,446.90
Step by Step Solution
- Step 1: Write the proportion equation
18,234,492.60 : 27,351,738.90 = 13,982,964.60 : x - Step 2: Convert to fraction form
18,234,492.60/27,351,738.90 = 13,982,964.60/x - Step 3: Cross multiply
18,234,492.60x = 27,351,738.90 × 13,982,964.60 - Step 4: Simplify right side
18,234,492.60x = 382,458,396,787,142.94 - Step 5: Solve for x
x = 382,458,396,787,142.94/18,234,492.60 - Step 6: Final answer
x = 20,974,446.90
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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.