Finding the Fourth Proportional to 5,419,761.21, 7,479,366.41 and 2,972,351.02
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Solution
The fourth proportional to 5,419,761.21, 7,479,366.41 and 2,972,351.02 is: 4,101,897.02
Step by Step Solution
- Step 1: Write the proportion equation
5,419,761.21 : 7,479,366.41 = 2,972,351.02 : x - Step 2: Convert to fraction form
5,419,761.21/7,479,366.41 = 2,972,351.02/x - Step 3: Cross multiply
5,419,761.21x = 7,479,366.41 × 2,972,351.02 - Step 4: Simplify right side
5,419,761.21x = 22,231,302,342,718.32 - Step 5: Solve for x
x = 22,231,302,342,718.32/5,419,761.21 - Step 6: Final answer
x = 4,101,897.02
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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.