Finding the Fourth Proportional to 6,321,457.11, 8,723,610.84 and 3,420,847.98
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Solution
The fourth proportional to 6,321,457.11, 8,723,610.84 and 3,420,847.98 is: 4,720,770.23
Step by Step Solution
- Step 1: Write the proportion equation
6,321,457.11 : 8,723,610.84 = 3,420,847.98 : x - Step 2: Convert to fraction form
6,321,457.11/8,723,610.84 = 3,420,847.98/x - Step 3: Cross multiply
6,321,457.11x = 8,723,610.84 × 3,420,847.98 - Step 4: Simplify right side
6,321,457.11x = 29,842,146,520,320.10 - Step 5: Solve for x
x = 29,842,146,520,320.10/6,321,457.11 - Step 6: Final answer
x = 4,720,770.23
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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.