Finding the Fourth Proportional to 13,511,287.20, 20,268,261.36 and 3,926,749.44
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Solution
The fourth proportional to 13,511,287.20, 20,268,261.36 and 3,926,749.44 is: 5,890,510.86
Step by Step Solution
- Step 1: Write the proportion equation
13,511,287.20 : 20,268,261.36 = 3,926,749.44 : x - Step 2: Convert to fraction form
13,511,287.20/20,268,261.36 = 3,926,749.44/x - Step 3: Cross multiply
13,511,287.20x = 20,268,261.36 × 3,926,749.44 - Step 4: Simplify right side
13,511,287.20x = 79,588,383,945,153.64 - Step 5: Solve for x
x = 79,588,383,945,153.64/13,511,287.20 - Step 6: Final answer
x = 5,890,510.86
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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.