Finding the Fourth Proportional to 18,398,821.70, 27,598,133.18 and 10,612,689.48
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Solution
The fourth proportional to 18,398,821.70, 27,598,133.18 and 10,612,689.48 is: 15,918,976.90
Step by Step Solution
- Step 1: Write the proportion equation
18,398,821.70 : 27,598,133.18 = 10,612,689.48 : x - Step 2: Convert to fraction form
18,398,821.70/27,598,133.18 = 10,612,689.48/x - Step 3: Cross multiply
18,398,821.70x = 27,598,133.18 × 10,612,689.48 - Step 4: Simplify right side
18,398,821.70x = 292,890,417,633,860.31 - Step 5: Solve for x
x = 292,890,417,633,860.31/18,398,821.70 - Step 6: Final answer
x = 15,918,976.90
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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.