Finding the Fourth Proportional to 3,902,915.24, 5,386,086.80 and 2,136,784.08
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Solution
The fourth proportional to 3,902,915.24, 5,386,086.80 and 2,136,784.08 is: 2,948,796.95
Step by Step Solution
- Step 1: Write the proportion equation
3,902,915.24 : 5,386,086.80 = 2,136,784.08 : x - Step 2: Convert to fraction form
3,902,915.24/5,386,086.80 = 2,136,784.08/x - Step 3: Cross multiply
3,902,915.24x = 5,386,086.80 × 2,136,784.08 - Step 4: Simplify right side
3,902,915.24x = 11,508,904,542,425.44 - Step 5: Solve for x
x = 11,508,904,542,425.44/3,902,915.24 - Step 6: Final answer
x = 2,948,796.95
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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.