Finding the Fourth Proportional to 18,508,459.79, 27,744,568.41 and 7,728,843.41
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Solution
The fourth proportional to 18,508,459.79, 27,744,568.41 and 7,728,843.41 is: 11,585,697.95
Step by Step Solution
- Step 1: Write the proportion equation
18,508,459.79 : 27,744,568.41 = 7,728,843.41 : x - Step 2: Convert to fraction form
18,508,459.79/27,744,568.41 = 7,728,843.41/x - Step 3: Cross multiply
18,508,459.79x = 27,744,568.41 × 7,728,843.41 - Step 4: Simplify right side
18,508,459.79x = 214,433,424,580,199.84 - Step 5: Solve for x
x = 214,433,424,580,199.84/18,508,459.79 - Step 6: Final answer
x = 11,585,697.95
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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.