Finding the Fourth Proportional to 201,075,917.40, 301,613,876.10 and 132,201,163.80
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Solution
The fourth proportional to 201,075,917.40, 301,613,876.10 and 132,201,163.80 is: 198,301,745.70
Step by Step Solution
- Step 1: Write the proportion equation
201,075,917.40 : 301,613,876.10 = 132,201,163.80 : x - Step 2: Convert to fraction form
201,075,917.40/301,613,876.10 = 132,201,163.80/x - Step 3: Cross multiply
201,075,917.40x = 301,613,876.10 × 132,201,163.80 - Step 4: Simplify right side
201,075,917.40x = 39,873,705,438,649,008 - Step 5: Solve for x
x = 39,873,705,438,649,008/201,075,917.40 - Step 6: Final answer
x = 198,301,745.70
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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.