Finding the Fourth Proportional to 1,120,278,519.19, 1,680,394,704.68 and 373,348,524.96
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Solution
The fourth proportional to 1,120,278,519.19, 1,680,394,704.68 and 373,348,524.96 is: 560,015,097.67
Step by Step Solution
- Step 1: Write the proportion equation
1,120,278,519.19 : 1,680,394,704.68 = 373,348,524.96 : x - Step 2: Convert to fraction form
1,120,278,519.19/1,680,394,704.68 = 373,348,524.96/x - Step 3: Cross multiply
1,120,278,519.19x = 1,680,394,704.68 × 373,348,524.96 - Step 4: Simplify right side
1,120,278,519.19x = 627,372,884,342,872,832 - Step 5: Solve for x
x = 627,372,884,342,872,832/1,120,278,519.19 - Step 6: Final answer
x = 560,015,097.67
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Double scale
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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.