Finding the Fourth Proportional to 5,729,689.80, 7,904,321.28 and 3,433,864.68
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Solution
The fourth proportional to 5,729,689.80, 7,904,321.28 and 3,433,864.68 is: 4,737,144.70
Step by Step Solution
- Step 1: Write the proportion equation
5,729,689.80 : 7,904,321.28 = 3,433,864.68 : x - Step 2: Convert to fraction form
5,729,689.80/7,904,321.28 = 3,433,864.68/x - Step 3: Cross multiply
5,729,689.80x = 7,904,321.28 × 3,433,864.68 - Step 4: Simplify right side
5,729,689.80x = 27,142,369,662,764.39 - Step 5: Solve for x
x = 27,142,369,662,764.39/5,729,689.80 - Step 6: Final answer
x = 4,737,144.70
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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.