Finding the Fourth Proportional to 2,129,204.20, 2,930,843.70 and 1,856,791.48
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Solution
The fourth proportional to 2,129,204.20, 2,930,843.70 and 1,856,791.48 is: 2,555,868.34
Step by Step Solution
- Step 1: Write the proportion equation
2,129,204.20 : 2,930,843.70 = 1,856,791.48 : x - Step 2: Convert to fraction form
2,129,204.20/2,930,843.70 = 1,856,791.48/x - Step 3: Cross multiply
2,129,204.20x = 2,930,843.70 × 1,856,791.48 - Step 4: Simplify right side
2,129,204.20x = 5,441,965,611,371.68 - Step 5: Solve for x
x = 5,441,965,611,371.68/2,129,204.20 - Step 6: Final answer
x = 2,555,868.34
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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.