Finding the Fourth Proportional to 8,305,163.70, 12,457,745.55 and 2,919,894.90
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Solution
The fourth proportional to 8,305,163.70, 12,457,745.55 and 2,919,894.90 is: 4,379,842.35
Step by Step Solution
- Step 1: Write the proportion equation
8,305,163.70 : 12,457,745.55 = 2,919,894.90 : x - Step 2: Convert to fraction form
8,305,163.70/12,457,745.55 = 2,919,894.90/x - Step 3: Cross multiply
8,305,163.70x = 12,457,745.55 × 2,919,894.90 - Step 4: Simplify right side
8,305,163.70x = 36,375,307,696,942.70 - Step 5: Solve for x
x = 36,375,307,696,942.70/8,305,163.70 - Step 6: Final answer
x = 4,379,842.35
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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.