Finding the Fourth Proportional to 764,931,409.60, 1,147,397,114.40 and 247,414,163.80
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Solution
The fourth proportional to 764,931,409.60, 1,147,397,114.40 and 247,414,163.80 is: 371,121,245.70
Step by Step Solution
- Step 1: Write the proportion equation
764,931,409.60 : 1,147,397,114.40 = 247,414,163.80 : x - Step 2: Convert to fraction form
764,931,409.60/1,147,397,114.40 = 247,414,163.80/x - Step 3: Cross multiply
764,931,409.60x = 1,147,397,114.40 × 247,414,163.80 - Step 4: Simplify right side
764,931,409.60x = 283,882,297,605,808,960 - Step 5: Solve for x
x = 283,882,297,605,808,960/764,931,409.60 - Step 6: Final answer
x = 371,121,245.70
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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.