Finding the Fourth Proportional to 12,455,549.80, 18,683,324.70 and 6,786,845.80
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Solution
The fourth proportional to 12,455,549.80, 18,683,324.70 and 6,786,845.80 is: 10,180,268.70
Step by Step Solution
- Step 1: Write the proportion equation
12,455,549.80 : 18,683,324.70 = 6,786,845.80 : x - Step 2: Convert to fraction form
12,455,549.80/18,683,324.70 = 6,786,845.80/x - Step 3: Cross multiply
12,455,549.80x = 18,683,324.70 × 6,786,845.80 - Step 4: Simplify right side
12,455,549.80x = 126,800,843,770,231.25 - Step 5: Solve for x
x = 126,800,843,770,231.25/12,455,549.80 - Step 6: Final answer
x = 10,180,268.70
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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.