Finding the Fourth Proportional to 4,728,609,638.70, 7,092,914,458.05 and 2,989,522,110.30
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Solution
The fourth proportional to 4,728,609,638.70, 7,092,914,458.05 and 2,989,522,110.30 is: 4,484,283,165.45
Step by Step Solution
- Step 1: Write the proportion equation
4,728,609,638.70 : 7,092,914,458.05 = 2,989,522,110.30 : x - Step 2: Convert to fraction form
4,728,609,638.70/7,092,914,458.05 = 2,989,522,110.30/x - Step 3: Cross multiply
4,728,609,638.70x = 7,092,914,458.05 × 2,989,522,110.30 - Step 4: Simplify right side
4,728,609,638.70x = 21,204,424,598,807,019,520 - Step 5: Solve for x
x = 21,204,424,598,807,019,520/4,728,609,638.70 - Step 6: Final answer
x = 4,484,283,165.45
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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.