Finding the Fourth Proportional to 18,815,153.09, 28,219,475.56 and 4,982,310.81
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Solution
The fourth proportional to 18,815,153.09, 28,219,475.56 and 4,982,310.81 is: 7,472,604.52
Step by Step Solution
- Step 1: Write the proportion equation
18,815,153.09 : 28,219,475.56 = 4,982,310.81 : x - Step 2: Convert to fraction form
18,815,153.09/28,219,475.56 = 4,982,310.81/x - Step 3: Cross multiply
18,815,153.09x = 28,219,475.56 × 4,982,310.81 - Step 4: Simplify right side
18,815,153.09x = 140,598,198,010,612.11 - Step 5: Solve for x
x = 140,598,198,010,612.11/18,815,153.09 - Step 6: Final answer
x = 7,472,604.52
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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.