Finding the Fourth Proportional to 3,939,006.44, 5,435,823.62 and 2,128,170.44
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Solution
The fourth proportional to 3,939,006.44, 5,435,823.62 and 2,128,170.44 is: 2,936,872.36
Step by Step Solution
- Step 1: Write the proportion equation
3,939,006.44 : 5,435,823.62 = 2,128,170.44 : x - Step 2: Convert to fraction form
3,939,006.44/5,435,823.62 = 2,128,170.44/x - Step 3: Cross multiply
3,939,006.44x = 5,435,823.62 × 2,128,170.44 - Step 4: Simplify right side
3,939,006.44x = 11,568,359,145,137.79 - Step 5: Solve for x
x = 11,568,359,145,137.79/3,939,006.44 - Step 6: Final answer
x = 2,936,872.36
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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.