Finding the Fourth Proportional to 1,818,857,796.40, 2,728,286,694.60 and 654,364,277.20
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Solution
The fourth proportional to 1,818,857,796.40, 2,728,286,694.60 and 654,364,277.20 is: 981,546,415.80
Step by Step Solution
- Step 1: Write the proportion equation
1,818,857,796.40 : 2,728,286,694.60 = 654,364,277.20 : x - Step 2: Convert to fraction form
1,818,857,796.40/2,728,286,694.60 = 654,364,277.20/x - Step 3: Cross multiply
1,818,857,796.40x = 2,728,286,694.60 × 654,364,277.20 - Step 4: Simplify right side
1,818,857,796.40x = 1,785,293,350,906,306,304 - Step 5: Solve for x
x = 1,785,293,350,906,306,304/1,818,857,796.40 - Step 6: Final answer
x = 981,546,415.80
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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.