Finding the Fourth Proportional to 8,474,415.80, 12,711,623.70 and 4,493,103.80
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Solution
The fourth proportional to 8,474,415.80, 12,711,623.70 and 4,493,103.80 is: 6,739,655.70
Step by Step Solution
- Step 1: Write the proportion equation
8,474,415.80 : 12,711,623.70 = 4,493,103.80 : x - Step 2: Convert to fraction form
8,474,415.80/12,711,623.70 = 4,493,103.80/x - Step 3: Cross multiply
8,474,415.80x = 12,711,623.70 × 4,493,103.80 - Step 4: Simplify right side
8,474,415.80x = 57,114,644,750,640.05 - Step 5: Solve for x
x = 57,114,644,750,640.05/8,474,415.80 - Step 6: Final answer
x = 6,739,655.70
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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.