Finding the Fourth Proportional to 12,591,490.86, 18,887,230.67 and 3,493,586.97
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Solution
The fourth proportional to 12,591,490.86, 18,887,230.67 and 3,493,586.97 is: 5,240,378.89
Step by Step Solution
- Step 1: Write the proportion equation
12,591,490.86 : 18,887,230.67 = 3,493,586.97 : x - Step 2: Convert to fraction form
12,591,490.86/18,887,230.67 = 3,493,586.97/x - Step 3: Cross multiply
12,591,490.86x = 18,887,230.67 × 3,493,586.97 - Step 4: Simplify right side
12,591,490.86x = 65,984,182,950,628.44 - Step 5: Solve for x
x = 65,984,182,950,628.44/12,591,490.86 - Step 6: Final answer
x = 5,240,378.89
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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.