Finding the Fourth Proportional to 1,198,441,197.63, 1,797,661,796.45 and 336,798,189.63
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Solution
The fourth proportional to 1,198,441,197.63, 1,797,661,796.45 and 336,798,189.63 is: 505,197,284.45
Step by Step Solution
- Step 1: Write the proportion equation
1,198,441,197.63 : 1,797,661,796.45 = 336,798,189.63 : x - Step 2: Convert to fraction form
1,198,441,197.63/1,797,661,796.45 = 336,798,189.63/x - Step 3: Cross multiply
1,198,441,197.63x = 1,797,661,796.45 × 336,798,189.63 - Step 4: Simplify right side
1,198,441,197.63x = 605,449,238,611,373,568 - Step 5: Solve for x
x = 605,449,238,611,373,568/1,198,441,197.63 - Step 6: Final answer
x = 505,197,284.45
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Double scale
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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.