Finding the Fourth Proportional to 7,474,808.10, 11,212,212.15 and 3,695,672.10
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Solution
The fourth proportional to 7,474,808.10, 11,212,212.15 and 3,695,672.10 is: 5,543,508.15
Step by Step Solution
- Step 1: Write the proportion equation
7,474,808.10 : 11,212,212.15 = 3,695,672.10 : x - Step 2: Convert to fraction form
7,474,808.10/11,212,212.15 = 3,695,672.10/x - Step 3: Cross multiply
7,474,808.10x = 11,212,212.15 × 3,695,672.10 - Step 4: Simplify right side
7,474,808.10x = 41,436,659,622,036.02 - Step 5: Solve for x
x = 41,436,659,622,036.02/7,474,808.10 - Step 6: Final answer
x = 5,543,508.15
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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.