Finding the Fourth Proportional to 5,147,403.72, 7,103,425.50 and 2,855,564.44
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Solution
The fourth proportional to 5,147,403.72, 7,103,425.50 and 2,855,564.44 is: 3,940,683.57
Step by Step Solution
- Step 1: Write the proportion equation
5,147,403.72 : 7,103,425.50 = 2,855,564.44 : x - Step 2: Convert to fraction form
5,147,403.72/7,103,425.50 = 2,855,564.44/x - Step 3: Cross multiply
5,147,403.72x = 7,103,425.50 × 2,855,564.44 - Step 4: Simplify right side
5,147,403.72x = 20,284,289,259,989.22 - Step 5: Solve for x
x = 20,284,289,259,989.22/5,147,403.72 - Step 6: Final answer
x = 3,940,683.57
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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.