Finding the Fourth Proportional to 27,867,688.44, 38,455,286.94 and 15,642,183.48
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Solution
The fourth proportional to 27,867,688.44, 38,455,286.94 and 15,642,183.48 is: 21,585,021.50
Step by Step Solution
- Step 1: Write the proportion equation
27,867,688.44 : 38,455,286.94 = 15,642,183.48 : x - Step 2: Convert to fraction form
27,867,688.44/38,455,286.94 = 15,642,183.48/x - Step 3: Cross multiply
27,867,688.44x = 38,455,286.94 × 15,642,183.48 - Step 4: Simplify right side
27,867,688.44x = 601,524,654,091,527.75 - Step 5: Solve for x
x = 601,524,654,091,527.75/27,867,688.44 - Step 6: Final answer
x = 21,585,021.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.