Finding the Fourth Proportional to 4,278,540.20, 6,417,810.30 and 3,606,693.80
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Solution
The fourth proportional to 4,278,540.20, 6,417,810.30 and 3,606,693.80 is: 5,410,040.70
Step by Step Solution
- Step 1: Write the proportion equation
4,278,540.20 : 6,417,810.30 = 3,606,693.80 : x - Step 2: Convert to fraction form
4,278,540.20/6,417,810.30 = 3,606,693.80/x - Step 3: Cross multiply
4,278,540.20x = 6,417,810.30 × 3,606,693.80 - Step 4: Simplify right side
4,278,540.20x = 23,147,076,618,586.14 - Step 5: Solve for x
x = 23,147,076,618,586.14/4,278,540.20 - Step 6: Final answer
x = 5,410,040.70
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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.