Finding the Fourth Proportional to 135,590,601.80, 203,385,902.70 and 71,889,609.80
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Solution
The fourth proportional to 135,590,601.80, 203,385,902.70 and 71,889,609.80 is: 107,834,414.70
Step by Step Solution
- Step 1: Write the proportion equation
135,590,601.80 : 203,385,902.70 = 71,889,609.80 : x - Step 2: Convert to fraction form
135,590,601.80/203,385,902.70 = 71,889,609.80/x - Step 3: Cross multiply
135,590,601.80x = 203,385,902.70 × 71,889,609.80 - Step 4: Simplify right side
135,590,601.80x = 14,621,333,183,923,764 - Step 5: Solve for x
x = 14,621,333,183,923,764/135,590,601.80 - Step 6: Final answer
x = 107,834,414.70
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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.