Finding the Fourth Proportional to 287,385,135.68, 431,350,236.72 and 177,879,060.44
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Solution
The fourth proportional to 287,385,135.68, 431,350,236.72 and 177,879,060.44 is: 266,987,277.01
Step by Step Solution
- Step 1: Write the proportion equation
287,385,135.68 : 431,350,236.72 = 177,879,060.44 : x - Step 2: Convert to fraction form
287,385,135.68/431,350,236.72 = 177,879,060.44/x - Step 3: Cross multiply
287,385,135.68x = 431,350,236.72 × 177,879,060.44 - Step 4: Simplify right side
287,385,135.68x = 76,728,174,828,325,184 - Step 5: Solve for x
x = 76,728,174,828,325,184/287,385,135.68 - Step 6: Final answer
x = 266,987,277.01
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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.