Finding the Fourth Proportional to 8,474,135.10, 12,711,202.65 and 5,072,912.70
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Solution
The fourth proportional to 8,474,135.10, 12,711,202.65 and 5,072,912.70 is: 7,609,369.05
Step by Step Solution
- Step 1: Write the proportion equation
8,474,135.10 : 12,711,202.65 = 5,072,912.70 : x - Step 2: Convert to fraction form
8,474,135.10/12,711,202.65 = 5,072,912.70/x - Step 3: Cross multiply
8,474,135.10x = 12,711,202.65 × 5,072,912.70 - Step 4: Simplify right side
8,474,135.10x = 64,482,821,355,458.66 - Step 5: Solve for x
x = 64,482,821,355,458.66/8,474,135.10 - Step 6: Final answer
x = 7,609,369.05
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Double scale
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Similar ratio
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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.