Finding the Fourth Proportional to 5,783,499.78, 7,981,180.09 and 3,170,148.99
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Solution
The fourth proportional to 5,783,499.78, 7,981,180.09 and 3,170,148.99 is: 4,374,778.41
Step by Step Solution
- Step 1: Write the proportion equation
5,783,499.78 : 7,981,180.09 = 3,170,148.99 : x - Step 2: Convert to fraction form
5,783,499.78/7,981,180.09 = 3,170,148.99/x - Step 3: Cross multiply
5,783,499.78x = 7,981,180.09 × 3,170,148.99 - Step 4: Simplify right side
5,783,499.78x = 25,301,530,008,360.95 - Step 5: Solve for x
x = 25,301,530,008,360.95/5,783,499.78 - Step 6: Final answer
x = 4,374,778.41
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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.