Finding the Fourth Proportional to 1,311,568,198.68, 1,966,141,613.64 and 655,948,716.60
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Solution
The fourth proportional to 1,311,568,198.68, 1,966,141,613.64 and 655,948,716.60 is: 983,317,580.75
Step by Step Solution
- Step 1: Write the proportion equation
1,311,568,198.68 : 1,966,141,613.64 = 655,948,716.60 : x - Step 2: Convert to fraction form
1,311,568,198.68/1,966,141,613.64 = 655,948,716.60/x - Step 3: Cross multiply
1,311,568,198.68x = 1,966,141,613.64 × 655,948,716.60 - Step 4: Simplify right side
1,311,568,198.68x = 1,289,688,068,121,011,200 - Step 5: Solve for x
x = 1,289,688,068,121,011,200/1,311,568,198.68 - Step 6: Final answer
x = 983,317,580.75
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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.