Finding the Fourth Proportional to 7,442,843.91, 11,157,524.91 and 5,169,441.75
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Solution
The fourth proportional to 7,442,843.91, 11,157,524.91 and 5,169,441.75 is: 7,749,480.68
Step by Step Solution
- Step 1: Write the proportion equation
7,442,843.91 : 11,157,524.91 = 5,169,441.75 : x - Step 2: Convert to fraction form
7,442,843.91/11,157,524.91 = 5,169,441.75/x - Step 3: Cross multiply
7,442,843.91x = 11,157,524.91 × 5,169,441.75 - Step 4: Simplify right side
7,442,843.91x = 57,678,175,096,418.99 - Step 5: Solve for x
x = 57,678,175,096,418.99/7,442,843.91 - Step 6: Final answer
x = 7,749,480.68
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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.