Finding the Fourth Proportional to 18,410,586.21, 27,616,986.47 and 5,631,201.63
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Solution
The fourth proportional to 18,410,586.21, 27,616,986.47 and 5,631,201.63 is: 8,447,141.09
Step by Step Solution
- Step 1: Write the proportion equation
18,410,586.21 : 27,616,986.47 = 5,631,201.63 : x - Step 2: Convert to fraction form
18,410,586.21/27,616,986.47 = 5,631,201.63/x - Step 3: Cross multiply
18,410,586.21x = 27,616,986.47 × 5,631,201.63 - Step 4: Simplify right side
18,410,586.21x = 155,516,819,239,629.94 - Step 5: Solve for x
x = 155,516,819,239,629.94/18,410,586.21 - Step 6: Final answer
x = 8,447,141.09
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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.