Finding the Fourth Proportional to 820,552,470.70, 1,229,783,611.65 and 335,330,070.70
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Solution
The fourth proportional to 820,552,470.70, 1,229,783,611.65 and 335,330,070.70 is: 502,568,013.83
Step by Step Solution
- Step 1: Write the proportion equation
820,552,470.70 : 1,229,783,611.65 = 335,330,070.70 : x - Step 2: Convert to fraction form
820,552,470.70/1,229,783,611.65 = 335,330,070.70/x - Step 3: Cross multiply
820,552,470.70x = 1,229,783,611.65 × 335,330,070.70 - Step 4: Simplify right side
820,552,470.70x = 412,383,425,440,295,872 - Step 5: Solve for x
x = 412,383,425,440,295,872/820,552,470.70 - Step 6: Final answer
x = 502,568,013.83
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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.