Finding the Fourth Proportional to 3,936,956.49, 5,432,999.99 and 2,126,120.49
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Solution
The fourth proportional to 3,936,956.49, 5,432,999.99 and 2,126,120.49 is: 2,934,046.29
Step by Step Solution
- Step 1: Write the proportion equation
3,936,956.49 : 5,432,999.99 = 2,126,120.49 : x - Step 2: Convert to fraction form
3,936,956.49/5,432,999.99 = 2,126,120.49/x - Step 3: Cross multiply
3,936,956.49x = 5,432,999.99 × 2,126,120.49 - Step 4: Simplify right side
3,936,956.49x = 11,551,212,590,278.20 - Step 5: Solve for x
x = 11,551,212,590,278.20/3,936,956.49 - Step 6: Final answer
x = 2,934,046.29
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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.