Finding the Fourth Proportional to 13,350,517.92, 18,424,076.97 and 7,550,167.05
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Solution
The fourth proportional to 13,350,517.92, 18,424,076.97 and 7,550,167.05 is: 10,419,435.39
Step by Step Solution
- Step 1: Write the proportion equation
13,350,517.92 : 18,424,076.97 = 7,550,167.05 : x - Step 2: Convert to fraction form
13,350,517.92/18,424,076.97 = 7,550,167.05/x - Step 3: Cross multiply
13,350,517.92x = 18,424,076.97 × 7,550,167.05 - Step 4: Simplify right side
13,350,517.92x = 139,104,858,865,557.83 - Step 5: Solve for x
x = 139,104,858,865,557.83/13,350,517.92 - Step 6: Final answer
x = 10,419,435.39
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1.5x scale
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.