Finding the Fourth Proportional to 6,321,458.21, 8,723,612.36 and 3,420,849.11
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Solution
The fourth proportional to 6,321,458.21, 8,723,612.36 and 3,420,849.11 is: 4,720,771.78
Step by Step Solution
- Step 1: Write the proportion equation
6,321,458.21 : 8,723,612.36 = 3,420,849.11 : x - Step 2: Convert to fraction form
6,321,458.21/8,723,612.36 = 3,420,849.11/x - Step 3: Cross multiply
6,321,458.21x = 8,723,612.36 × 3,420,849.11 - Step 4: Simplify right side
6,321,458.21x = 29,842,161,516,968.70 - Step 5: Solve for x
x = 29,842,161,516,968.70/6,321,458.21 - Step 6: Final answer
x = 4,720,771.78
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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.