Finding the Fourth Proportional to 7,487,486.70, 11,231,230.05 and 7,193,553.90
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Solution
The fourth proportional to 7,487,486.70, 11,231,230.05 and 7,193,553.90 is: 10,790,330.85
Step by Step Solution
- Step 1: Write the proportion equation
7,487,486.70 : 11,231,230.05 = 7,193,553.90 : x - Step 2: Convert to fraction form
7,487,486.70/11,231,230.05 = 7,193,553.90/x - Step 3: Cross multiply
7,487,486.70x = 11,231,230.05 × 7,193,553.90 - Step 4: Simplify right side
7,487,486.70x = 80,792,458,727,974.70 - Step 5: Solve for x
x = 80,792,458,727,974.70/7,487,486.70 - Step 6: Final answer
x = 10,790,330.85
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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.