Finding the Fourth Proportional to 13,149,163.40, 19,723,745.10 and 7,409,600.60
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Solution
The fourth proportional to 13,149,163.40, 19,723,745.10 and 7,409,600.60 is: 11,114,400.90
Step by Step Solution
- Step 1: Write the proportion equation
13,149,163.40 : 19,723,745.10 = 7,409,600.60 : x - Step 2: Convert to fraction form
13,149,163.40/19,723,745.10 = 7,409,600.60/x - Step 3: Cross multiply
13,149,163.40x = 19,723,745.10 × 7,409,600.60 - Step 4: Simplify right side
13,149,163.40x = 146,145,073,527,207.06 - Step 5: Solve for x
x = 146,145,073,527,207.06/13,149,163.40 - Step 6: Final answer
x = 11,114,400.90
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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.