Finding the Fourth Proportional to 8,981,879.23, 12,391,082.53 and 5,497,373.14
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Solution
The fourth proportional to 8,981,879.23, 12,391,082.53 and 5,497,373.14 is: 7,583,981.31
Step by Step Solution
- Step 1: Write the proportion equation
8,981,879.23 : 12,391,082.53 = 5,497,373.14 : x - Step 2: Convert to fraction form
8,981,879.23/12,391,082.53 = 5,497,373.14/x - Step 3: Cross multiply
8,981,879.23x = 12,391,082.53 × 5,497,373.14 - Step 4: Simplify right side
8,981,879.23x = 68,118,404,231,224.11 - Step 5: Solve for x
x = 68,118,404,231,224.11/8,981,879.23 - Step 6: Final answer
x = 7,583,981.31
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.