Finding the Fourth Proportional to 8,771,163.20, 13,156,744.80 and 8,393,249.60
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Solution
The fourth proportional to 8,771,163.20, 13,156,744.80 and 8,393,249.60 is: 12,589,874.40
Step by Step Solution
- Step 1: Write the proportion equation
8,771,163.20 : 13,156,744.80 = 8,393,249.60 : x - Step 2: Convert to fraction form
8,771,163.20/13,156,744.80 = 8,393,249.60/x - Step 3: Cross multiply
8,771,163.20x = 13,156,744.80 × 8,393,249.60 - Step 4: Simplify right side
8,771,163.20x = 110,427,843,029,902.08 - Step 5: Solve for x
x = 110,427,843,029,902.08/8,771,163.20 - Step 6: Final answer
x = 12,589,874.40
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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.