Finding the Fourth Proportional to 2,186,136,912.20, 3,279,205,368.30 and 1,975,261,123.40
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Solution
The fourth proportional to 2,186,136,912.20, 3,279,205,368.30 and 1,975,261,123.40 is: 2,962,891,685.10
Step by Step Solution
- Step 1: Write the proportion equation
2,186,136,912.20 : 3,279,205,368.30 = 1,975,261,123.40 : x - Step 2: Convert to fraction form
2,186,136,912.20/3,279,205,368.30 = 1,975,261,123.40/x - Step 3: Cross multiply
2,186,136,912.20x = 3,279,205,368.30 × 1,975,261,123.40 - Step 4: Simplify right side
2,186,136,912.20x = 6,477,286,879,647,569,920 - Step 5: Solve for x
x = 6,477,286,879,647,569,920/2,186,136,912.20 - Step 6: Final answer
x = 2,962,891,685.10
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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.