Finding the Fourth Proportional to 115,230,821.26, 172,902,979.48 and 53,811,053.49
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Solution
The fourth proportional to 115,230,821.26, 172,902,979.48 and 53,811,053.49 is: 80,743,080.50
Step by Step Solution
- Step 1: Write the proportion equation
115,230,821.26 : 172,902,979.48 = 53,811,053.49 : x - Step 2: Convert to fraction form
115,230,821.26/172,902,979.48 = 53,811,053.49/x - Step 3: Cross multiply
115,230,821.26x = 172,902,979.48 × 53,811,053.49 - Step 4: Simplify right side
115,230,821.26x = 9,304,091,477,238,728 - Step 5: Solve for x
x = 9,304,091,477,238,728/115,230,821.26 - Step 6: Final answer
x = 80,743,080.50
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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.