Finding the Fourth Proportional to 8,117,517.62, 11,202,149.67 and 4,679,728.58
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Solution
The fourth proportional to 8,117,517.62, 11,202,149.67 and 4,679,728.58 is: 6,458,011.23
Step by Step Solution
- Step 1: Write the proportion equation
8,117,517.62 : 11,202,149.67 = 4,679,728.58 : x - Step 2: Convert to fraction form
8,117,517.62/11,202,149.67 = 4,679,728.58/x - Step 3: Cross multiply
8,117,517.62x = 11,202,149.67 × 4,679,728.58 - Step 4: Simplify right side
8,117,517.62x = 52,423,019,968,136.57 - Step 5: Solve for x
x = 52,423,019,968,136.57/8,117,517.62 - Step 6: Final answer
x = 6,458,011.23
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.