Finding the Fourth Proportional to 126,278,410.50, 172,998,527.49 and 121,557,204.65
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Solution
The fourth proportional to 126,278,410.50, 172,998,527.49 and 121,557,204.65 is: 166,530,583.70
Step by Step Solution
- Step 1: Write the proportion equation
126,278,410.50 : 172,998,527.49 = 121,557,204.65 : x - Step 2: Convert to fraction form
126,278,410.50/172,998,527.49 = 121,557,204.65/x - Step 3: Cross multiply
126,278,410.50x = 172,998,527.49 × 121,557,204.65 - Step 4: Simplify right side
126,278,410.50x = 21,029,217,409,385,588 - Step 5: Solve for x
x = 21,029,217,409,385,588/126,278,410.50 - Step 6: Final answer
x = 166,530,583.70
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.