Finding the Fourth Proportional to 13,494,818.10, 20,242,227.15 and 12,193,115.70
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Solution
The fourth proportional to 13,494,818.10, 20,242,227.15 and 12,193,115.70 is: 18,289,673.55
Step by Step Solution
- Step 1: Write the proportion equation
13,494,818.10 : 20,242,227.15 = 12,193,115.70 : x - Step 2: Convert to fraction form
13,494,818.10/20,242,227.15 = 12,193,115.70/x - Step 3: Cross multiply
13,494,818.10x = 20,242,227.15 × 12,193,115.70 - Step 4: Simplify right side
13,494,818.10x = 246,815,817,665,631.22 - Step 5: Solve for x
x = 246,815,817,665,631.22/13,494,818.10 - Step 6: Final answer
x = 18,289,673.55
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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.