Finding the Fourth Proportional to 20,617,961.67, 28,452,853.58 and 11,450,604.42
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Solution
The fourth proportional to 20,617,961.67, 28,452,853.58 and 11,450,604.42 is: 15,801,871.02
Step by Step Solution
- Step 1: Write the proportion equation
20,617,961.67 : 28,452,853.58 = 11,450,604.42 : x - Step 2: Convert to fraction form
20,617,961.67/28,452,853.58 = 11,450,604.42/x - Step 3: Cross multiply
20,617,961.67x = 28,452,853.58 × 11,450,604.42 - Step 4: Simplify right side
20,617,961.67x = 325,802,370,964,760.81 - Step 5: Solve for x
x = 325,802,370,964,760.81/20,617,961.67 - Step 6: Final answer
x = 15,801,871.02
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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.