Finding the Fourth Proportional to 190,738,183.48, 285,724,197.79 and 86,964,640.49
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Solution
The fourth proportional to 190,738,183.48, 285,724,197.79 and 86,964,640.49 is: 130,272,301.47
Step by Step Solution
- Step 1: Write the proportion equation
190,738,183.48 : 285,724,197.79 = 86,964,640.49 : x - Step 2: Convert to fraction form
190,738,183.48/285,724,197.79 = 86,964,640.49/x - Step 3: Cross multiply
190,738,183.48x = 285,724,197.79 × 86,964,640.49 - Step 4: Simplify right side
190,738,183.48x = 24,847,902,140,597,904 - Step 5: Solve for x
x = 24,847,902,140,597,904/190,738,183.48 - Step 6: Final answer
x = 130,272,301.47
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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.