Finding the Fourth Proportional to 6,838,829.10, 9,436,761.87 and 3,939,163.02
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Solution
The fourth proportional to 6,838,829.10, 9,436,761.87 and 3,939,163.02 is: 5,435,571.33
Step by Step Solution
- Step 1: Write the proportion equation
6,838,829.10 : 9,436,761.87 = 3,939,163.02 : x - Step 2: Convert to fraction form
6,838,829.10/9,436,761.87 = 3,939,163.02/x - Step 3: Cross multiply
6,838,829.10x = 9,436,761.87 × 3,939,163.02 - Step 4: Simplify right side
6,838,829.10x = 37,172,943,386,850.05 - Step 5: Solve for x
x = 37,172,943,386,850.05/6,838,829.10 - Step 6: Final answer
x = 5,435,571.33
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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.