Finding the Fourth Proportional to 17,317,872.70, 23,879,107.19 and 12,952,970.62
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Solution
The fourth proportional to 17,317,872.70, 23,879,107.19 and 12,952,970.62 is: 17,860,471.62
Step by Step Solution
- Step 1: Write the proportion equation
17,317,872.70 : 23,879,107.19 = 12,952,970.62 : x - Step 2: Convert to fraction form
17,317,872.70/23,879,107.19 = 12,952,970.62/x - Step 3: Cross multiply
17,317,872.70x = 23,879,107.19 × 12,952,970.62 - Step 4: Simplify right side
17,317,872.70x = 309,305,373,836,585.38 - Step 5: Solve for x
x = 309,305,373,836,585.38/17,317,872.70 - Step 6: Final answer
x = 17,860,471.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.