Finding the Fourth Proportional to 7,080,963.20, 9,770,049.60 and 4,024,936.88
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Solution
The fourth proportional to 7,080,963.20, 9,770,049.60 and 4,024,936.88 is: 5,553,458.17
Step by Step Solution
- Step 1: Write the proportion equation
7,080,963.20 : 9,770,049.60 = 4,024,936.88 : x - Step 2: Convert to fraction form
7,080,963.20/9,770,049.60 = 4,024,936.88/x - Step 3: Cross multiply
7,080,963.20x = 9,770,049.60 × 4,024,936.88 - Step 4: Simplify right side
7,080,963.20x = 39,323,832,954,469.24 - Step 5: Solve for x
x = 39,323,832,954,469.24/7,080,963.20 - Step 6: Final answer
x = 5,553,458.17
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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.