Finding the Fourth Proportional to 3,897,202.96, 5,378,253.35 and 2,131,205.09
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Solution
The fourth proportional to 3,897,202.96, 5,378,253.35 and 2,131,205.09 is: 2,941,124.96
Step by Step Solution
- Step 1: Write the proportion equation
3,897,202.96 : 5,378,253.35 = 2,131,205.09 : x - Step 2: Convert to fraction form
3,897,202.96/5,378,253.35 = 2,131,205.09/x - Step 3: Cross multiply
3,897,202.96x = 5,378,253.35 × 2,131,205.09 - Step 4: Simplify right side
3,897,202.96x = 11,462,160,887,938.28 - Step 5: Solve for x
x = 11,462,160,887,938.28/3,897,202.96 - Step 6: Final answer
x = 2,941,124.96
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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.