Finding the Fourth Proportional to 11,448,021.36, 17,143,688.12 and 8,408,178.80
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Solution
The fourth proportional to 11,448,021.36, 17,143,688.12 and 8,408,178.80 is: 12,591,450.56
Step by Step Solution
- Step 1: Write the proportion equation
11,448,021.36 : 17,143,688.12 = 8,408,178.80 : x - Step 2: Convert to fraction form
11,448,021.36/17,143,688.12 = 8,408,178.80/x - Step 3: Cross multiply
11,448,021.36x = 17,143,688.12 × 8,408,178.80 - Step 4: Simplify right side
11,448,021.36x = 144,147,195,004,395.88 - Step 5: Solve for x
x = 144,147,195,004,395.88/11,448,021.36 - Step 6: Final answer
x = 12,591,450.56
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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.