Finding the Fourth Proportional to 201,207,998.40, 301,811,997.60 and 201,207,998.40
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Solution
The fourth proportional to 201,207,998.40, 301,811,997.60 and 201,207,998.40 is: 301,811,997.60
Step by Step Solution
- Step 1: Write the proportion equation
201,207,998.40 : 301,811,997.60 = 201,207,998.40 : x - Step 2: Convert to fraction form
201,207,998.40/301,811,997.60 = 201,207,998.40/x - Step 3: Cross multiply
201,207,998.40x = 301,811,997.60 × 201,207,998.40 - Step 4: Simplify right side
201,207,998.40x = 60,726,987,930,201,608 - Step 5: Solve for x
x = 60,726,987,930,201,608/201,207,998.40 - Step 6: Final answer
x = 301,811,997.60
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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.