Finding the Fourth Proportional to 10,371,751.20, 15,557,626.80 and 2,798,704.80
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Solution
The fourth proportional to 10,371,751.20, 15,557,626.80 and 2,798,704.80 is: 4,198,057.20
Step by Step Solution
- Step 1: Write the proportion equation
10,371,751.20 : 15,557,626.80 = 2,798,704.80 : x - Step 2: Convert to fraction form
10,371,751.20/15,557,626.80 = 2,798,704.80/x - Step 3: Cross multiply
10,371,751.20x = 15,557,626.80 × 2,798,704.80 - Step 4: Simplify right side
10,371,751.20x = 43,541,204,801,768.64 - Step 5: Solve for x
x = 43,541,204,801,768.64/10,371,751.20 - Step 6: Final answer
x = 4,198,057.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.