Finding the Fourth Proportional to 10,135,311.54, 15,205,558.78 and 2,946,845.43
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Solution
The fourth proportional to 10,135,311.54, 15,205,558.78 and 2,946,845.43 is: 4,421,021.62
Step by Step Solution
- Step 1: Write the proportion equation
10,135,311.54 : 15,205,558.78 = 2,946,845.43 : x - Step 2: Convert to fraction form
10,135,311.54/15,205,558.78 = 2,946,845.43/x - Step 3: Cross multiply
10,135,311.54x = 15,205,558.78 × 2,946,845.43 - Step 4: Simplify right side
10,135,311.54x = 44,808,431,388,546.93 - Step 5: Solve for x
x = 44,808,431,388,546.93/10,135,311.54 - Step 6: Final answer
x = 4,421,021.62
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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.