Finding the Fourth Proportional to 764,946,219.20, 1,147,419,328.80 and 611,891,211.20
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Solution
The fourth proportional to 764,946,219.20, 1,147,419,328.80 and 611,891,211.20 is: 917,836,816.80
Step by Step Solution
- Step 1: Write the proportion equation
764,946,219.20 : 1,147,419,328.80 = 611,891,211.20 : x - Step 2: Convert to fraction form
764,946,219.20/1,147,419,328.80 = 611,891,211.20/x - Step 3: Cross multiply
764,946,219.20x = 1,147,419,328.80 × 611,891,211.20 - Step 4: Simplify right side
764,946,219.20x = 702,095,802,853,723,008 - Step 5: Solve for x
x = 702,095,802,853,723,008/764,946,219.20 - Step 6: Final answer
x = 917,836,816.80
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Similar ratio
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1.5x scale
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.