Finding the Fourth Proportional to 3,643,893.20, 5,469,156.64 and 1,939,467.44
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Solution
The fourth proportional to 3,643,893.20, 5,469,156.64 and 1,939,467.44 is: 2,910,966.55
Step by Step Solution
- Step 1: Write the proportion equation
3,643,893.20 : 5,469,156.64 = 1,939,467.44 : x - Step 2: Convert to fraction form
3,643,893.20/5,469,156.64 = 1,939,467.44/x - Step 3: Cross multiply
3,643,893.20x = 5,469,156.64 × 1,939,467.44 - Step 4: Simplify right side
3,643,893.20x = 10,607,251,227,539.80 - Step 5: Solve for x
x = 10,607,251,227,539.80/3,643,893.20 - Step 6: Final answer
x = 2,910,966.55
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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.