Finding the Fourth Proportional to 18,142,731.75, 27,214,097.64 and 7,505,163.75
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Solution
The fourth proportional to 18,142,731.75, 27,214,097.64 and 7,505,163.75 is: 11,257,745.63
Step by Step Solution
- Step 1: Write the proportion equation
18,142,731.75 : 27,214,097.64 = 7,505,163.75 : x - Step 2: Convert to fraction form
18,142,731.75/27,214,097.64 = 7,505,163.75/x - Step 3: Cross multiply
18,142,731.75x = 27,214,097.64 × 7,505,163.75 - Step 4: Simplify right side
18,142,731.75x = 204,246,259,096,688.56 - Step 5: Solve for x
x = 204,246,259,096,688.56/18,142,731.75 - Step 6: Final answer
x = 11,257,745.63
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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.