Finding the Fourth Proportional to 220,373,163.60, 330,559,745.40 and 206,936,235.60
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Solution
The fourth proportional to 220,373,163.60, 330,559,745.40 and 206,936,235.60 is: 310,404,353.40
Step by Step Solution
- Step 1: Write the proportion equation
220,373,163.60 : 330,559,745.40 = 206,936,235.60 : x - Step 2: Convert to fraction form
220,373,163.60/330,559,745.40 = 206,936,235.60/x - Step 3: Cross multiply
220,373,163.60x = 330,559,745.40 × 206,936,235.60 - Step 4: Simplify right side
220,373,163.60x = 68,404,789,353,970,408 - Step 5: Solve for x
x = 68,404,789,353,970,408/220,373,163.60 - Step 6: Final answer
x = 310,404,353.40
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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.