Finding the Fourth Proportional to 3,693,936,759.36, 5,097,715,207.68 and 2,107,997,142.72
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Solution
The fourth proportional to 3,693,936,759.36, 5,097,715,207.68 and 2,107,997,142.72 is: 2,909,083,125.19
Step by Step Solution
- Step 1: Write the proportion equation
3,693,936,759.36 : 5,097,715,207.68 = 2,107,997,142.72 : x - Step 2: Convert to fraction form
3,693,936,759.36/5,097,715,207.68 = 2,107,997,142.72/x - Step 3: Cross multiply
3,693,936,759.36x = 5,097,715,207.68 × 2,107,997,142.72 - Step 4: Simplify right side
3,693,936,759.36x = 10,745,969,092,189,732,864 - Step 5: Solve for x
x = 10,745,969,092,189,732,864/3,693,936,759.36 - Step 6: Final answer
x = 2,909,083,125.19
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1.5x scale
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.