Finding the Fourth Proportional to 3,747,745.98, 5,171,891.18 and 2,028,866.49
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Solution
The fourth proportional to 3,747,745.98, 5,171,891.18 and 2,028,866.49 is: 2,799,836.69
Step by Step Solution
- Step 1: Write the proportion equation
3,747,745.98 : 5,171,891.18 = 2,028,866.49 : x - Step 2: Convert to fraction form
3,747,745.98/5,171,891.18 = 2,028,866.49/x - Step 3: Cross multiply
3,747,745.98x = 5,171,891.18 × 2,028,866.49 - Step 4: Simplify right side
3,747,745.98x = 10,493,076,705,028.56 - Step 5: Solve for x
x = 10,493,076,705,028.56/3,747,745.98 - Step 6: Final answer
x = 2,799,836.69
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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.