Finding the Fourth Proportional to 4,128,064.20, 6,192,096.30 and 3,120,294.60
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Solution
The fourth proportional to 4,128,064.20, 6,192,096.30 and 3,120,294.60 is: 4,680,441.90
Step by Step Solution
- Step 1: Write the proportion equation
4,128,064.20 : 6,192,096.30 = 3,120,294.60 : x - Step 2: Convert to fraction form
4,128,064.20/6,192,096.30 = 3,120,294.60/x - Step 3: Cross multiply
4,128,064.20x = 6,192,096.30 × 3,120,294.60 - Step 4: Simplify right side
4,128,064.20x = 19,321,164,647,569.98 - Step 5: Solve for x
x = 19,321,164,647,569.98/4,128,064.20 - Step 6: Final answer
x = 4,680,441.90
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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.