Finding the Fourth Proportional to 8,722,414.20, 13,083,621.30 and 8,330,503.80
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Solution
The fourth proportional to 8,722,414.20, 13,083,621.30 and 8,330,503.80 is: 12,495,755.70
Step by Step Solution
- Step 1: Write the proportion equation
8,722,414.20 : 13,083,621.30 = 8,330,503.80 : x - Step 2: Convert to fraction form
8,722,414.20/13,083,621.30 = 8,330,503.80/x - Step 3: Cross multiply
8,722,414.20x = 13,083,621.30 × 8,330,503.80 - Step 4: Simplify right side
8,722,414.20x = 108,993,156,957,410.94 - Step 5: Solve for x
x = 108,993,156,957,410.94/8,722,414.20 - Step 6: Final answer
x = 12,495,755.70
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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.