Finding the Fourth Proportional to 3,766,908.65, 5,198,511.61 and 2,135,347.72
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Solution
The fourth proportional to 3,766,908.65, 5,198,511.61 and 2,135,347.72 is: 2,946,880.57
Step by Step Solution
- Step 1: Write the proportion equation
3,766,908.65 : 5,198,511.61 = 2,135,347.72 : x - Step 2: Convert to fraction form
3,766,908.65/5,198,511.61 = 2,135,347.72/x - Step 3: Cross multiply
3,766,908.65x = 5,198,511.61 × 2,135,347.72 - Step 4: Simplify right side
3,766,908.65x = 11,100,629,891,468.60 - Step 5: Solve for x
x = 11,100,629,891,468.60/3,766,908.65 - Step 6: Final answer
x = 2,946,880.57
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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.