Finding the Fourth Proportional to 21,344,861.26, 29,455,773.42 and 11,555,234.20
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Solution
The fourth proportional to 21,344,861.26, 29,455,773.42 and 11,555,234.20 is: 15,946,150.05
Step by Step Solution
- Step 1: Write the proportion equation
21,344,861.26 : 29,455,773.42 = 11,555,234.20 : x - Step 2: Convert to fraction form
21,344,861.26/29,455,773.42 = 11,555,234.20/x - Step 3: Cross multiply
21,344,861.26x = 29,455,773.42 × 11,555,234.20 - Step 4: Simplify right side
21,344,861.26x = 340,368,360,410,234.94 - Step 5: Solve for x
x = 340,368,360,410,234.94/21,344,861.26 - Step 6: Final answer
x = 15,946,150.05
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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.