Finding the Fourth Proportional to 21,694,650.87, 29,939,069.58 and 11,904,523.50
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Solution
The fourth proportional to 21,694,650.87, 29,939,069.58 and 11,904,523.50 is: 16,428,490.12
Step by Step Solution
- Step 1: Write the proportion equation
21,694,650.87 : 29,939,069.58 = 11,904,523.50 : x - Step 2: Convert to fraction form
21,694,650.87/29,939,069.58 = 11,904,523.50/x - Step 3: Cross multiply
21,694,650.87x = 29,939,069.58 × 11,904,523.50 - Step 4: Simplify right side
21,694,650.87x = 356,410,357,383,245.12 - Step 5: Solve for x
x = 356,410,357,383,245.12/21,694,650.87 - Step 6: Final answer
x = 16,428,490.12
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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.