Finding the Fourth Proportional to 227,181,481.68, 313,510,431.40 and 122,759,550
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Solution
The fourth proportional to 227,181,481.68, 313,510,431.40 and 122,759,550 is: 169,408,171.80
Step by Step Solution
- Step 1: Write the proportion equation
227,181,481.68 : 313,510,431.40 = 122,759,550 : x - Step 2: Convert to fraction form
227,181,481.68/313,510,431.40 = 122,759,550/x - Step 3: Cross multiply
227,181,481.68x = 313,510,431.40 × 122,759,550 - Step 4: Simplify right side
227,181,481.68x = 38,486,399,478,969,864 - Step 5: Solve for x
x = 38,486,399,478,969,864/227,181,481.68 - Step 6: Final answer
x = 169,408,171.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.