Finding the Fourth Proportional to 5,239,617.48, 7,858,975.97 and 3,189,745.98
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Solution
The fourth proportional to 5,239,617.48, 7,858,975.97 and 3,189,745.98 is: 4,784,344.87
Step by Step Solution
- Step 1: Write the proportion equation
5,239,617.48 : 7,858,975.97 = 3,189,745.98 : x - Step 2: Convert to fraction form
5,239,617.48/7,858,975.97 = 3,189,745.98/x - Step 3: Cross multiply
5,239,617.48x = 7,858,975.97 × 3,189,745.98 - Step 4: Simplify right side
5,239,617.48x = 25,068,136,991,275.37 - Step 5: Solve for x
x = 25,068,136,991,275.37/5,239,617.48 - Step 6: Final answer
x = 4,784,344.87
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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.