Finding the Fourth Proportional to 8,279,722.20, 12,419,583.30 and 4,234,865.70
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Solution
The fourth proportional to 8,279,722.20, 12,419,583.30 and 4,234,865.70 is: 6,352,298.55
Step by Step Solution
- Step 1: Write the proportion equation
8,279,722.20 : 12,419,583.30 = 4,234,865.70 : x - Step 2: Convert to fraction form
8,279,722.20/12,419,583.30 = 4,234,865.70/x - Step 3: Cross multiply
8,279,722.20x = 12,419,583.30 × 4,234,865.70 - Step 4: Simplify right side
8,279,722.20x = 52,595,267,325,462.81 - Step 5: Solve for x
x = 52,595,267,325,462.81/8,279,722.20 - Step 6: Final answer
x = 6,352,298.55
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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.