Finding the Fourth Proportional to 20,450,338.23, 30,667,852.31 and 8,777,235.99
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Solution
The fourth proportional to 20,450,338.23, 30,667,852.31 and 8,777,235.99 is: 13,162,568.46
Step by Step Solution
- Step 1: Write the proportion equation
20,450,338.23 : 30,667,852.31 = 8,777,235.99 : x - Step 2: Convert to fraction form
20,450,338.23/30,667,852.31 = 8,777,235.99/x - Step 3: Cross multiply
20,450,338.23x = 30,667,852.31 × 8,777,235.99 - Step 4: Simplify right side
20,450,338.23x = 269,178,976,987,450.47 - Step 5: Solve for x
x = 269,178,976,987,450.47/20,450,338.23 - Step 6: Final answer
x = 13,162,568.46
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1.5x scale
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.