Finding the Fourth Proportional to 220,190,717.80, 330,286,076.70 and 147,631,306.60
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Solution
The fourth proportional to 220,190,717.80, 330,286,076.70 and 147,631,306.60 is: 221,446,959.90
Step by Step Solution
- Step 1: Write the proportion equation
220,190,717.80 : 330,286,076.70 = 147,631,306.60 : x - Step 2: Convert to fraction form
220,190,717.80/330,286,076.70 = 147,631,306.60/x - Step 3: Cross multiply
220,190,717.80x = 330,286,076.70 × 147,631,306.60 - Step 4: Simplify right side
220,190,717.80x = 48,760,565,055,008,816 - Step 5: Solve for x
x = 48,760,565,055,008,816/220,190,717.80 - Step 6: Final answer
x = 221,446,959.90
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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.