Finding the Fourth Proportional to 6,342,704.88, 8,752,996.94 and 3,442,120.80
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Solution
The fourth proportional to 6,342,704.88, 8,752,996.94 and 3,442,120.80 is: 4,750,161.55
Step by Step Solution
- Step 1: Write the proportion equation
6,342,704.88 : 8,752,996.94 = 3,442,120.80 : x - Step 2: Convert to fraction form
6,342,704.88/8,752,996.94 = 3,442,120.80/x - Step 3: Cross multiply
6,342,704.88x = 8,752,996.94 × 3,442,120.80 - Step 4: Simplify right side
6,342,704.88x = 30,128,872,812,299.75 - Step 5: Solve for x
x = 30,128,872,812,299.75/6,342,704.88 - Step 6: Final answer
x = 4,750,161.55
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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.