Finding the Fourth Proportional to 12,383,893.21, 17,089,912.79 and 6,802,269.99
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Solution
The fourth proportional to 12,383,893.21, 17,089,912.79 and 6,802,269.99 is: 9,387,209.57
Step by Step Solution
- Step 1: Write the proportion equation
12,383,893.21 : 17,089,912.79 = 6,802,269.99 : x - Step 2: Convert to fraction form
12,383,893.21/17,089,912.79 = 6,802,269.99/x - Step 3: Cross multiply
12,383,893.21x = 17,089,912.79 × 6,802,269.99 - Step 4: Simplify right side
12,383,893.21x = 116,250,200,936,238.91 - Step 5: Solve for x
x = 116,250,200,936,238.91/12,383,893.21 - Step 6: Final answer
x = 9,387,209.57
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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.