Finding the Fourth Proportional to 6,443,615.75, 8,891,962.12 and 3,542,986.31
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Solution
The fourth proportional to 6,443,615.75, 8,891,962.12 and 3,542,986.31 is: 4,889,195.95
Step by Step Solution
- Step 1: Write the proportion equation
6,443,615.75 : 8,891,962.12 = 3,542,986.31 : x - Step 2: Convert to fraction form
6,443,615.75/8,891,962.12 = 3,542,986.31/x - Step 3: Cross multiply
6,443,615.75x = 8,891,962.12 × 3,542,986.31 - Step 4: Simplify right side
6,443,615.75x = 31,504,100,060,198.57 - Step 5: Solve for x
x = 31,504,100,060,198.57/6,443,615.75 - Step 6: Final answer
x = 4,889,195.95
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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.