Finding the Fourth Proportional to 1,818,857,796.90, 2,728,286,695.35 and 654,364,277.70
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Solution
The fourth proportional to 1,818,857,796.90, 2,728,286,695.35 and 654,364,277.70 is: 981,546,416.55
Step by Step Solution
- Step 1: Write the proportion equation
1,818,857,796.90 : 2,728,286,695.35 = 654,364,277.70 : x - Step 2: Convert to fraction form
1,818,857,796.90/2,728,286,695.35 = 654,364,277.70/x - Step 3: Cross multiply
1,818,857,796.90x = 2,728,286,695.35 × 654,364,277.70 - Step 4: Simplify right side
1,818,857,796.90x = 1,785,293,352,761,222,656 - Step 5: Solve for x
x = 1,785,293,352,761,222,656/1,818,857,796.90 - Step 6: Final answer
x = 981,546,416.55
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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.