Finding the Fourth Proportional to 112,135,171.80, 168,202,757.70 and 30,253,891.80
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Solution
The fourth proportional to 112,135,171.80, 168,202,757.70 and 30,253,891.80 is: 45,380,837.70
Step by Step Solution
- Step 1: Write the proportion equation
112,135,171.80 : 168,202,757.70 = 30,253,891.80 : x - Step 2: Convert to fraction form
112,135,171.80/168,202,757.70 = 30,253,891.80/x - Step 3: Cross multiply
112,135,171.80x = 168,202,757.70 × 30,253,891.80 - Step 4: Simplify right side
112,135,171.80x = 5,088,788,031,917,417 - Step 5: Solve for x
x = 5,088,788,031,917,417/112,135,171.80 - Step 6: Final answer
x = 45,380,837.70
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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.