Finding the Fourth Proportional to 20,544,769.14, 28,351,238.79 and 11,724,062.31
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Solution
The fourth proportional to 20,544,769.14, 28,351,238.79 and 11,724,062.31 is: 16,178,896.33
Step by Step Solution
- Step 1: Write the proportion equation
20,544,769.14 : 28,351,238.79 = 11,724,062.31 : x - Step 2: Convert to fraction form
20,544,769.14/28,351,238.79 = 11,724,062.31/x - Step 3: Cross multiply
20,544,769.14x = 28,351,238.79 × 11,724,062.31 - Step 4: Simplify right side
20,544,769.14x = 332,391,690,139,649 - Step 5: Solve for x
x = 332,391,690,139,649/20,544,769.14 - Step 6: Final answer
x = 16,178,896.33
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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.