Finding the Fourth Proportional to 388,447,375.88, 536,051,122.20 and 212,231,586.44
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Solution
The fourth proportional to 388,447,375.88, 536,051,122.20 and 212,231,586.44 is: 292,876,170.99
Step by Step Solution
- Step 1: Write the proportion equation
388,447,375.88 : 536,051,122.20 = 212,231,586.44 : x - Step 2: Convert to fraction form
388,447,375.88/536,051,122.20 = 212,231,586.44/x - Step 3: Cross multiply
388,447,375.88x = 536,051,122.20 × 212,231,586.44 - Step 4: Simplify right side
388,447,375.88x = 113,766,980,077,448,304 - Step 5: Solve for x
x = 113,766,980,077,448,304/388,447,375.88 - Step 6: Final answer
x = 292,876,170.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.