Finding the Fourth Proportional to 5,256,576,608.40, 7,884,864,912.60 and 2,676,686,432.40
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Solution
The fourth proportional to 5,256,576,608.40, 7,884,864,912.60 and 2,676,686,432.40 is: 4,015,029,648.60
Step by Step Solution
- Step 1: Write the proportion equation
5,256,576,608.40 : 7,884,864,912.60 = 2,676,686,432.40 : x - Step 2: Convert to fraction form
5,256,576,608.40/7,884,864,912.60 = 2,676,686,432.40/x - Step 3: Cross multiply
5,256,576,608.40x = 7,884,864,912.60 × 2,676,686,432.40 - Step 4: Simplify right side
5,256,576,608.40x = 21,105,310,932,863,234,048 - Step 5: Solve for x
x = 21,105,310,932,863,234,048/5,256,576,608.40 - Step 6: Final answer
x = 4,015,029,648.60
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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.