Finding the Fourth Proportional to 18,287,205.12, 27,428,883.20 and 7,505,646.08
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Solution
The fourth proportional to 18,287,205.12, 27,428,883.20 and 7,505,646.08 is: 11,257,679.25
Step by Step Solution
- Step 1: Write the proportion equation
18,287,205.12 : 27,428,883.20 = 7,505,646.08 : x - Step 2: Convert to fraction form
18,287,205.12/27,428,883.20 = 7,505,646.08/x - Step 3: Cross multiply
18,287,205.12x = 27,428,883.20 × 7,505,646.08 - Step 4: Simplify right side
18,287,205.12x = 205,871,489,668,857.84 - Step 5: Solve for x
x = 205,871,489,668,857.84/18,287,205.12 - Step 6: Final answer
x = 11,257,679.25
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.