Finding the Fourth Proportional to 5,172,644.68, 7,138,470.90 and 2,880,805
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Solution
The fourth proportional to 5,172,644.68, 7,138,470.90 and 2,880,805 is: 3,975,634.12
Step by Step Solution
- Step 1: Write the proportion equation
5,172,644.68 : 7,138,470.90 = 2,880,805 : x - Step 2: Convert to fraction form
5,172,644.68/7,138,470.90 = 2,880,805/x - Step 3: Cross multiply
5,172,644.68x = 7,138,470.90 × 2,880,805 - Step 4: Simplify right side
5,172,644.68x = 20,564,542,661,074.50 - Step 5: Solve for x
x = 20,564,542,661,074.50/5,172,644.68 - Step 6: Final answer
x = 3,975,634.12
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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.