Finding the Fourth Proportional to 193,968,138.30, 290,952,207.45 and 172,923,074.70
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Solution
The fourth proportional to 193,968,138.30, 290,952,207.45 and 172,923,074.70 is: 259,384,612.05
Step by Step Solution
- Step 1: Write the proportion equation
193,968,138.30 : 290,952,207.45 = 172,923,074.70 : x - Step 2: Convert to fraction form
193,968,138.30/290,952,207.45 = 172,923,074.70/x - Step 3: Cross multiply
193,968,138.30x = 290,952,207.45 × 172,923,074.70 - Step 4: Simplify right side
193,968,138.30x = 50,312,350,303,006,240 - Step 5: Solve for x
x = 50,312,350,303,006,240/193,968,138.30 - Step 6: Final answer
x = 259,384,612.05
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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.