Finding the Fourth Proportional to 6,321,469.94, 8,722,690.10 and 3,839,398.99
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Solution
The fourth proportional to 6,321,469.94, 8,722,690.10 and 3,839,398.99 is: 5,297,800.65
Step by Step Solution
- Step 1: Write the proportion equation
6,321,469.94 : 8,722,690.10 = 3,839,398.99 : x - Step 2: Convert to fraction form
6,321,469.94/8,722,690.10 = 3,839,398.99/x - Step 3: Cross multiply
6,321,469.94x = 8,722,690.10 × 3,839,398.99 - Step 4: Simplify right side
6,321,469.94x = 33,489,887,519,019.28 - Step 5: Solve for x
x = 33,489,887,519,019.28/6,321,469.94 - Step 6: Final answer
x = 5,297,800.65
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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.