Finding the Fourth Proportional to 99,991,450.28, 149,972,020.82 and 27,213,902.24
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Solution
The fourth proportional to 99,991,450.28, 149,972,020.82 and 27,213,902.24 is: 40,816,728.85
Step by Step Solution
- Step 1: Write the proportion equation
99,991,450.28 : 149,972,020.82 = 27,213,902.24 : x - Step 2: Convert to fraction form
99,991,450.28/149,972,020.82 = 27,213,902.24/x - Step 3: Cross multiply
99,991,450.28x = 149,972,020.82 × 27,213,902.24 - Step 4: Simplify right side
99,991,450.28x = 4,081,323,913,330,724 - Step 5: Solve for x
x = 4,081,323,913,330,724/99,991,450.28 - Step 6: Final answer
x = 40,816,728.85
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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.