Finding the Fourth Proportional to 13,305,974.40, 19,958,961.60 and 4,786,588.80
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Solution
The fourth proportional to 13,305,974.40, 19,958,961.60 and 4,786,588.80 is: 7,179,883.20
Step by Step Solution
- Step 1: Write the proportion equation
13,305,974.40 : 19,958,961.60 = 4,786,588.80 : x - Step 2: Convert to fraction form
13,305,974.40/19,958,961.60 = 4,786,588.80/x - Step 3: Cross multiply
13,305,974.40x = 19,958,961.60 × 4,786,588.80 - Step 4: Simplify right side
13,305,974.40x = 95,535,342,054,190.08 - Step 5: Solve for x
x = 95,535,342,054,190.08/13,305,974.40 - Step 6: Final answer
x = 7,179,883.20
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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.