Finding the Fourth Proportional to 3,638,163.12, 5,461,029.75 and 2,679,700.92
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Solution
The fourth proportional to 3,638,163.12, 5,461,029.75 and 2,679,700.92 is: 4,022,339.29
Step by Step Solution
- Step 1: Write the proportion equation
3,638,163.12 : 5,461,029.75 = 2,679,700.92 : x - Step 2: Convert to fraction form
3,638,163.12/5,461,029.75 = 2,679,700.92/x - Step 3: Cross multiply
3,638,163.12x = 5,461,029.75 × 2,679,700.92 - Step 4: Simplify right side
3,638,163.12x = 14,633,926,445,222.37 - Step 5: Solve for x
x = 14,633,926,445,222.37/3,638,163.12 - Step 6: Final answer
x = 4,022,339.29
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.