Finding the Fourth Proportional to 326,764,811.40, 490,147,217.10 and 324,497,329.80
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Solution
The fourth proportional to 326,764,811.40, 490,147,217.10 and 324,497,329.80 is: 486,745,994.70
Step by Step Solution
- Step 1: Write the proportion equation
326,764,811.40 : 490,147,217.10 = 324,497,329.80 : x - Step 2: Convert to fraction form
326,764,811.40/490,147,217.10 = 324,497,329.80/x - Step 3: Cross multiply
326,764,811.40x = 490,147,217.10 × 324,497,329.80 - Step 4: Simplify right side
326,764,811.40x = 159,051,463,157,850,912 - Step 5: Solve for x
x = 159,051,463,157,850,912/326,764,811.40 - Step 6: Final answer
x = 486,745,994.70
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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.