Finding the Fourth Proportional to 18,738,107.70, 28,107,161.55 and 14,481,330.90
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Solution
The fourth proportional to 18,738,107.70, 28,107,161.55 and 14,481,330.90 is: 21,721,996.35
Step by Step Solution
- Step 1: Write the proportion equation
18,738,107.70 : 28,107,161.55 = 14,481,330.90 : x - Step 2: Convert to fraction form
18,738,107.70/28,107,161.55 = 14,481,330.90/x - Step 3: Cross multiply
18,738,107.70x = 28,107,161.55 × 14,481,330.90 - Step 4: Simplify right side
18,738,107.70x = 407,029,107,065,306.94 - Step 5: Solve for x
x = 407,029,107,065,306.94/18,738,107.70 - Step 6: Final answer
x = 21,721,996.35
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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.