Finding the Fourth Proportional to 18,683,163.40, 28,024,745.10 and 15,707,093.80
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Solution
The fourth proportional to 18,683,163.40, 28,024,745.10 and 15,707,093.80 is: 23,560,640.70
Step by Step Solution
- Step 1: Write the proportion equation
18,683,163.40 : 28,024,745.10 = 15,707,093.80 : x - Step 2: Convert to fraction form
18,683,163.40/28,024,745.10 = 15,707,093.80/x - Step 3: Cross multiply
18,683,163.40x = 28,024,745.10 × 15,707,093.80 - Step 4: Simplify right side
18,683,163.40x = 440,187,300,006,790.44 - Step 5: Solve for x
x = 440,187,300,006,790.44/18,683,163.40 - Step 6: Final answer
x = 23,560,640.70
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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.