Finding the Fourth Proportional to 12,143,201.31, 18,212,119.65 and 3,505,424.49
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Solution
The fourth proportional to 12,143,201.31, 18,212,119.65 and 3,505,424.49 is: 5,257,362.42
Step by Step Solution
- Step 1: Write the proportion equation
12,143,201.31 : 18,212,119.65 = 3,505,424.49 : x - Step 2: Convert to fraction form
12,143,201.31/18,212,119.65 = 3,505,424.49/x - Step 3: Cross multiply
12,143,201.31x = 18,212,119.65 × 3,505,424.49 - Step 4: Simplify right side
12,143,201.31x = 63,841,210,235,920.23 - Step 5: Solve for x
x = 63,841,210,235,920.23/12,143,201.31 - Step 6: Final answer
x = 5,257,362.42
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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.