Finding the Fourth Proportional to 5,451,645.20, 8,176,811.70 and 2,256,438.20
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Solution
The fourth proportional to 5,451,645.20, 8,176,811.70 and 2,256,438.20 is: 3,384,385.74
Step by Step Solution
- Step 1: Write the proportion equation
5,451,645.20 : 8,176,811.70 = 2,256,438.20 : x - Step 2: Convert to fraction form
5,451,645.20/8,176,811.70 = 2,256,438.20/x - Step 3: Cross multiply
5,451,645.20x = 8,176,811.70 × 2,256,438.20 - Step 4: Simplify right side
5,451,645.20x = 18,450,470,274,086.94 - Step 5: Solve for x
x = 18,450,470,274,086.94/5,451,645.20 - Step 6: Final answer
x = 3,384,385.74
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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.