Finding the Fourth Proportional to 18,538,343.80, 27,807,515.70 and 18,538,343.80
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Solution
The fourth proportional to 18,538,343.80, 27,807,515.70 and 18,538,343.80 is: 27,807,515.70
Step by Step Solution
- Step 1: Write the proportion equation
18,538,343.80 : 27,807,515.70 = 18,538,343.80 : x - Step 2: Convert to fraction form
18,538,343.80/27,807,515.70 = 18,538,343.80/x - Step 3: Cross multiply
18,538,343.80x = 27,807,515.70 × 18,538,343.80 - Step 4: Simplify right side
18,538,343.80x = 515,505,286,270,497.69 - Step 5: Solve for x
x = 515,505,286,270,497.69/18,538,343.80 - Step 6: Final answer
x = 27,807,515.70
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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.