Finding the Fourth Proportional to 11,237,212.70, 16,855,819.05 and 8,367,431.30
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Solution
The fourth proportional to 11,237,212.70, 16,855,819.05 and 8,367,431.30 is: 12,551,146.95
Step by Step Solution
- Step 1: Write the proportion equation
11,237,212.70 : 16,855,819.05 = 8,367,431.30 : x - Step 2: Convert to fraction form
11,237,212.70/16,855,819.05 = 8,367,431.30/x - Step 3: Cross multiply
11,237,212.70x = 16,855,819.05 × 8,367,431.30 - Step 4: Simplify right side
11,237,212.70x = 141,039,907,906,106.28 - Step 5: Solve for x
x = 141,039,907,906,106.28/11,237,212.70 - Step 6: Final answer
x = 12,551,146.95
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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.