Finding the Fourth Proportional to 11,164,517.20, 16,746,775.80 and 8,330,165.20
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Solution
The fourth proportional to 11,164,517.20, 16,746,775.80 and 8,330,165.20 is: 12,495,247.80
Step by Step Solution
- Step 1: Write the proportion equation
11,164,517.20 : 16,746,775.80 = 8,330,165.20 : x - Step 2: Convert to fraction form
11,164,517.20/16,746,775.80 = 8,330,165.20/x - Step 3: Cross multiply
11,164,517.20x = 16,746,775.80 × 8,330,165.20 - Step 4: Simplify right side
11,164,517.20x = 139,503,408,981,362.17 - Step 5: Solve for x
x = 139,503,408,981,362.17/11,164,517.20 - Step 6: Final answer
x = 12,495,247.80
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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.