Finding the Fourth Proportional to 3,936,913.94, 5,432,941.30 and 2,126,077.94
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Solution
The fourth proportional to 3,936,913.94, 5,432,941.30 and 2,126,077.94 is: 2,933,987.59
Step by Step Solution
- Step 1: Write the proportion equation
3,936,913.94 : 5,432,941.30 = 2,126,077.94 : x - Step 2: Convert to fraction form
3,936,913.94/5,432,941.30 = 2,126,077.94/x - Step 3: Cross multiply
3,936,913.94x = 5,432,941.30 × 2,126,077.94 - Step 4: Simplify right side
3,936,913.94x = 11,550,856,647,244.92 - Step 5: Solve for x
x = 11,550,856,647,244.92/3,936,913.94 - Step 6: Final answer
x = 2,933,987.59
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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.