Finding the Fourth Proportional to 13,762,450.97, 18,992,729.56 and 7,568,005.53
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Solution
The fourth proportional to 13,762,450.97, 18,992,729.56 and 7,568,005.53 is: 10,444,148.55
Step by Step Solution
- Step 1: Write the proportion equation
13,762,450.97 : 18,992,729.56 = 7,568,005.53 : x - Step 2: Convert to fraction form
13,762,450.97/18,992,729.56 = 7,568,005.53/x - Step 3: Cross multiply
13,762,450.97x = 18,992,729.56 × 7,568,005.53 - Step 4: Simplify right side
13,762,450.97x = 143,737,082,339,874.47 - Step 5: Solve for x
x = 143,737,082,339,874.47/13,762,450.97 - Step 6: Final answer
x = 10,444,148.55
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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.