Finding the Fourth Proportional to 120,379,793.53, 180,263,154.63 and 79,314,734.97
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Solution
The fourth proportional to 120,379,793.53, 180,263,154.63 and 79,314,734.97 is: 118,770,135.05
Step by Step Solution
- Step 1: Write the proportion equation
120,379,793.53 : 180,263,154.63 = 79,314,734.97 : x - Step 2: Convert to fraction form
120,379,793.53/180,263,154.63 = 79,314,734.97/x - Step 3: Cross multiply
120,379,793.53x = 180,263,154.63 × 79,314,734.97 - Step 4: Simplify right side
120,379,793.53x = 14,297,524,334,334,578 - Step 5: Solve for x
x = 14,297,524,334,334,578/120,379,793.53 - Step 6: Final answer
x = 118,770,135.05
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.