Finding the Fourth Proportional to 7,235,928.60, 10,860,113.70 and 3,198,629.40
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Solution
The fourth proportional to 7,235,928.60, 10,860,113.70 and 3,198,629.40 is: 4,800,693.99
Step by Step Solution
- Step 1: Write the proportion equation
7,235,928.60 : 10,860,113.70 = 3,198,629.40 : x - Step 2: Convert to fraction form
7,235,928.60/10,860,113.70 = 3,198,629.40/x - Step 3: Cross multiply
7,235,928.60x = 10,860,113.70 × 3,198,629.40 - Step 4: Simplify right side
7,235,928.60x = 34,737,478,968,162.78 - Step 5: Solve for x
x = 34,737,478,968,162.78/7,235,928.60 - Step 6: Final answer
x = 4,800,693.99
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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.