Finding the Fourth Proportional to 673,612,912.20, 1,010,419,368.30 and 382,367,497.80
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Solution
The fourth proportional to 673,612,912.20, 1,010,419,368.30 and 382,367,497.80 is: 573,551,246.70
Step by Step Solution
- Step 1: Write the proportion equation
673,612,912.20 : 1,010,419,368.30 = 382,367,497.80 : x - Step 2: Convert to fraction form
673,612,912.20/1,010,419,368.30 = 382,367,497.80/x - Step 3: Cross multiply
673,612,912.20x = 1,010,419,368.30 × 382,367,497.80 - Step 4: Simplify right side
673,612,912.20x = 386,351,525,585,527,616 - Step 5: Solve for x
x = 386,351,525,585,527,616/673,612,912.20 - Step 6: Final answer
x = 573,551,246.70
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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.