Finding the Fourth Proportional to 8,213,728.14, 11,334,486.47 and 4,491,824.67
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Solution
The fourth proportional to 8,213,728.14, 11,334,486.47 and 4,491,824.67 is: 6,198,467.38
Step by Step Solution
- Step 1: Write the proportion equation
8,213,728.14 : 11,334,486.47 = 4,491,824.67 : x - Step 2: Convert to fraction form
8,213,728.14/11,334,486.47 = 4,491,824.67/x - Step 3: Cross multiply
8,213,728.14x = 11,334,486.47 × 4,491,824.67 - Step 4: Simplify right side
8,213,728.14x = 50,912,525,925,268.09 - Step 5: Solve for x
x = 50,912,525,925,268.09/8,213,728.14 - Step 6: Final answer
x = 6,198,467.38
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.