Finding the Fourth Proportional to 4,914,789.64, 7,366,394.07 and 2,215,955.09
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Solution
The fourth proportional to 4,914,789.64, 7,366,394.07 and 2,215,955.09 is: 3,321,321.90
Step by Step Solution
- Step 1: Write the proportion equation
4,914,789.64 : 7,366,394.07 = 2,215,955.09 : x - Step 2: Convert to fraction form
4,914,789.64/7,366,394.07 = 2,215,955.09/x - Step 3: Cross multiply
4,914,789.64x = 7,366,394.07 × 2,215,955.09 - Step 4: Simplify right side
4,914,789.64x = 16,323,598,452,778.30 - Step 5: Solve for x
x = 16,323,598,452,778.30/4,914,789.64 - Step 6: Final answer
x = 3,321,321.90
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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.