Finding the Fourth Proportional to 38,498,431.40, 57,780,306.30 and 15,795,621.80
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Solution
The fourth proportional to 38,498,431.40, 57,780,306.30 and 15,795,621.80 is: 23,706,832.53
Step by Step Solution
- Step 1: Write the proportion equation
38,498,431.40 : 57,780,306.30 = 15,795,621.80 : x - Step 2: Convert to fraction form
38,498,431.40/57,780,306.30 = 15,795,621.80/x - Step 3: Cross multiply
38,498,431.40x = 57,780,306.30 × 15,795,621.80 - Step 4: Simplify right side
38,498,431.40x = 912,675,865,802,957.38 - Step 5: Solve for x
x = 912,675,865,802,957.38/38,498,431.40 - Step 6: Final answer
x = 23,706,832.53
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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.