Finding the Fourth Proportional to 12,054,503.20, 18,123,745.20 and 10,206,925.60
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Solution
The fourth proportional to 12,054,503.20, 18,123,745.20 and 10,206,925.60 is: 15,345,942.99
Step by Step Solution
- Step 1: Write the proportion equation
12,054,503.20 : 18,123,745.20 = 10,206,925.60 : x - Step 2: Convert to fraction form
12,054,503.20/18,123,745.20 = 10,206,925.60/x - Step 3: Cross multiply
12,054,503.20x = 18,123,745.20 × 10,206,925.60 - Step 4: Simplify right side
12,054,503.20x = 184,987,718,849,757.09 - Step 5: Solve for x
x = 184,987,718,849,757.09/12,054,503.20 - Step 6: Final answer
x = 15,345,942.99
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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.