Finding the Fourth Proportional to 20,418,434.91, 30,598,783.92 and 11,324,538.99
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Solution
The fourth proportional to 20,418,434.91, 30,598,783.92 and 11,324,538.99 is: 16,970,797.37
Step by Step Solution
- Step 1: Write the proportion equation
20,418,434.91 : 30,598,783.92 = 11,324,538.99 : x - Step 2: Convert to fraction form
20,418,434.91/30,598,783.92 = 11,324,538.99/x - Step 3: Cross multiply
20,418,434.91x = 30,598,783.92 × 11,324,538.99 - Step 4: Simplify right side
20,418,434.91x = 346,517,121,548,625.06 - Step 5: Solve for x
x = 346,517,121,548,625.06/20,418,434.91 - Step 6: Final answer
x = 16,970,797.37
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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.