Finding the Fourth Proportional to 10,787,157.70, 16,180,736.55 and 2,808,981.70
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Solution
The fourth proportional to 10,787,157.70, 16,180,736.55 and 2,808,981.70 is: 4,213,472.55
Step by Step Solution
- Step 1: Write the proportion equation
10,787,157.70 : 16,180,736.55 = 2,808,981.70 : x - Step 2: Convert to fraction form
10,787,157.70/16,180,736.55 = 2,808,981.70/x - Step 3: Cross multiply
10,787,157.70x = 16,180,736.55 × 2,808,981.70 - Step 4: Simplify right side
10,787,157.70x = 45,451,392,861,471.14 - Step 5: Solve for x
x = 45,451,392,861,471.14/10,787,157.70 - Step 6: Final answer
x = 4,213,472.55
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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.