Finding the Fourth Proportional to 306,647,716.41, 423,171,658.26 and 167,418,474.03
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Solution
The fourth proportional to 306,647,716.41, 423,171,658.26 and 167,418,474.03 is: 231,036,298.29
Step by Step Solution
- Step 1: Write the proportion equation
306,647,716.41 : 423,171,658.26 = 167,418,474.03 : x - Step 2: Convert to fraction form
306,647,716.41/423,171,658.26 = 167,418,474.03/x - Step 3: Cross multiply
306,647,716.41x = 423,171,658.26 × 167,418,474.03 - Step 4: Simplify right side
306,647,716.41x = 70,846,753,278,633,840 - Step 5: Solve for x
x = 70,846,753,278,633,840/306,647,716.41 - Step 6: Final answer
x = 231,036,298.29
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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.