Finding the Fourth Proportional to 220,942,922.65, 331,402,370.52 and 67,588,979.09
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Solution
The fourth proportional to 220,942,922.65, 331,402,370.52 and 67,588,979.09 is: 101,379,793.58
Step by Step Solution
- Step 1: Write the proportion equation
220,942,922.65 : 331,402,370.52 = 67,588,979.09 : x - Step 2: Convert to fraction form
220,942,922.65/331,402,370.52 = 67,588,979.09/x - Step 3: Cross multiply
220,942,922.65x = 331,402,370.52 × 67,588,979.09 - Step 4: Simplify right side
220,942,922.65x = 22,399,147,891,341,496 - Step 5: Solve for x
x = 22,399,147,891,341,496/220,942,922.65 - Step 6: Final answer
x = 101,379,793.58
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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.