Finding the Fourth Proportional to 3,718,432.53, 5,131,538.64 and 2,086,940.88
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Solution
The fourth proportional to 3,718,432.53, 5,131,538.64 and 2,086,940.88 is: 2,880,035.52
Step by Step Solution
- Step 1: Write the proportion equation
3,718,432.53 : 5,131,538.64 = 2,086,940.88 : x - Step 2: Convert to fraction form
3,718,432.53/5,131,538.64 = 2,086,940.88/x - Step 3: Cross multiply
3,718,432.53x = 5,131,538.64 × 2,086,940.88 - Step 4: Simplify right side
3,718,432.53x = 10,709,217,765,115.60 - Step 5: Solve for x
x = 10,709,217,765,115.60/3,718,432.53 - Step 6: Final answer
x = 2,880,035.52
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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.