Finding the Fourth Proportional to 7,474,940.40, 11,217,659.40 and 3,218,163.60
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Solution
The fourth proportional to 7,474,940.40, 11,217,659.40 and 3,218,163.60 is: 4,829,505.15
Step by Step Solution
- Step 1: Write the proportion equation
7,474,940.40 : 11,217,659.40 = 3,218,163.60 : x - Step 2: Convert to fraction form
7,474,940.40/11,217,659.40 = 3,218,163.60/x - Step 3: Cross multiply
7,474,940.40x = 11,217,659.40 × 3,218,163.60 - Step 4: Simplify right side
7,474,940.40x = 36,100,263,158,277.84 - Step 5: Solve for x
x = 36,100,263,158,277.84/7,474,940.40 - Step 6: Final answer
x = 4,829,505.15
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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.