Finding the Fourth Proportional to 18,498,418.20, 27,747,627.30 and 5,720,214.60
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Solution
The fourth proportional to 18,498,418.20, 27,747,627.30 and 5,720,214.60 is: 8,580,321.90
Step by Step Solution
- Step 1: Write the proportion equation
18,498,418.20 : 27,747,627.30 = 5,720,214.60 : x - Step 2: Convert to fraction form
18,498,418.20/27,747,627.30 = 5,720,214.60/x - Step 3: Cross multiply
18,498,418.20x = 27,747,627.30 × 5,720,214.60 - Step 4: Simplify right side
18,498,418.20x = 158,722,382,796,818.56 - Step 5: Solve for x
x = 158,722,382,796,818.56/18,498,418.20 - Step 6: Final answer
x = 8,580,321.90
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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.