Finding the Fourth Proportional to 1,891,176,356.70, 2,836,764,535.05 and 664,344,808.20
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Solution
The fourth proportional to 1,891,176,356.70, 2,836,764,535.05 and 664,344,808.20 is: 996,517,212.30
Step by Step Solution
- Step 1: Write the proportion equation
1,891,176,356.70 : 2,836,764,535.05 = 664,344,808.20 : x - Step 2: Convert to fraction form
1,891,176,356.70/2,836,764,535.05 = 664,344,808.20/x - Step 3: Cross multiply
1,891,176,356.70x = 2,836,764,535.05 × 664,344,808.20 - Step 4: Simplify right side
1,891,176,356.70x = 1,884,589,790,946,354,688 - Step 5: Solve for x
x = 1,884,589,790,946,354,688/1,891,176,356.70 - Step 6: Final answer
x = 996,517,212.30
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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.