Finding the Fourth Proportional to 7,178,469.44, 9,906,046.08 and 4,276,357.28
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Solution
The fourth proportional to 7,178,469.44, 9,906,046.08 and 4,276,357.28 is: 5,901,229.03
Step by Step Solution
- Step 1: Write the proportion equation
7,178,469.44 : 9,906,046.08 = 4,276,357.28 : x - Step 2: Convert to fraction form
7,178,469.44/9,906,046.08 = 4,276,357.28/x - Step 3: Cross multiply
7,178,469.44x = 9,906,046.08 × 4,276,357.28 - Step 4: Simplify right side
7,178,469.44x = 42,361,792,270,223.47 - Step 5: Solve for x
x = 42,361,792,270,223.47/7,178,469.44 - Step 6: Final answer
x = 5,901,229.03
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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.