Finding the Fourth Proportional to 9,922,175,998.40, 14,883,263,997.60 and 8,085,515,902.40
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Solution
The fourth proportional to 9,922,175,998.40, 14,883,263,997.60 and 8,085,515,902.40 is: 12,128,273,853.60
Step by Step Solution
- Step 1: Write the proportion equation
9,922,175,998.40 : 14,883,263,997.60 = 8,085,515,902.40 : x - Step 2: Convert to fraction form
9,922,175,998.40/14,883,263,997.60 = 8,085,515,902.40/x - Step 3: Cross multiply
9,922,175,998.40x = 14,883,263,997.60 × 8,085,515,902.40 - Step 4: Simplify right side
9,922,175,998.40x = 120,338,867,732,212,187,136 - Step 5: Solve for x
x = 120,338,867,732,212,187,136/9,922,175,998.40 - Step 6: Final answer
x = 12,128,273,853.60
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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.