Finding the Fourth Proportional to 13,867,121.97, 20,783,646.72 and 7,789,077.18
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Solution
The fourth proportional to 13,867,121.97, 20,783,646.72 and 7,789,077.18 is: 11,674,046.62
Step by Step Solution
- Step 1: Write the proportion equation
13,867,121.97 : 20,783,646.72 = 7,789,077.18 : x - Step 2: Convert to fraction form
13,867,121.97/20,783,646.72 = 7,789,077.18/x - Step 3: Cross multiply
13,867,121.97x = 20,783,646.72 × 7,789,077.18 - Step 4: Simplify right side
13,867,121.97x = 161,885,428,383,933.84 - Step 5: Solve for x
x = 161,885,428,383,933.84/13,867,121.97 - Step 6: Final answer
x = 11,674,046.62
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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.