Finding the Fourth Proportional to 21,467,370.65, 29,624,949.09 and 11,677,791.49
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Solution
The fourth proportional to 21,467,370.65, 29,624,949.09 and 11,677,791.49 is: 16,115,340.06
Step by Step Solution
- Step 1: Write the proportion equation
21,467,370.65 : 29,624,949.09 = 11,677,791.49 : x - Step 2: Convert to fraction form
21,467,370.65/29,624,949.09 = 11,677,791.49/x - Step 3: Cross multiply
21,467,370.65x = 29,624,949.09 × 11,677,791.49 - Step 4: Simplify right side
21,467,370.65x = 345,953,978,351,278.62 - Step 5: Solve for x
x = 345,953,978,351,278.62/21,467,370.65 - Step 6: Final answer
x = 16,115,340.06
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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.