Finding the Fourth Proportional to 5,202,043.88, 7,178,658.36 and 2,878,796.58
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Solution
The fourth proportional to 5,202,043.88, 7,178,658.36 and 2,878,796.58 is: 3,972,649.52
Step by Step Solution
- Step 1: Write the proportion equation
5,202,043.88 : 7,178,658.36 = 2,878,796.58 : x - Step 2: Convert to fraction form
5,202,043.88/7,178,658.36 = 2,878,796.58/x - Step 3: Cross multiply
5,202,043.88x = 7,178,658.36 × 2,878,796.58 - Step 4: Simplify right side
5,202,043.88x = 20,665,897,135,756.41 - Step 5: Solve for x
x = 20,665,897,135,756.41/5,202,043.88 - Step 6: Final answer
x = 3,972,649.52
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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.