Finding the Fourth Proportional to 5,168,077.97, 7,131,947.61 and 2,876,779.94
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Solution
The fourth proportional to 5,168,077.97, 7,131,947.61 and 2,876,779.94 is: 3,969,956.32
Step by Step Solution
- Step 1: Write the proportion equation
5,168,077.97 : 7,131,947.61 = 2,876,779.94 : x - Step 2: Convert to fraction form
5,168,077.97/7,131,947.61 = 2,876,779.94/x - Step 3: Cross multiply
5,168,077.97x = 7,131,947.61 × 2,876,779.94 - Step 4: Simplify right side
5,168,077.97x = 20,517,043,817,578.95 - Step 5: Solve for x
x = 20,517,043,817,578.95/5,168,077.97 - Step 6: Final answer
x = 3,969,956.32
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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.