Finding the Fourth Proportional to 20,806,161.99, 31,221,572.34 and 11,591,846.94
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Solution
The fourth proportional to 20,806,161.99, 31,221,572.34 and 11,591,846.94 is: 17,394,639.54
Step by Step Solution
- Step 1: Write the proportion equation
20,806,161.99 : 31,221,572.34 = 11,591,846.94 : x - Step 2: Convert to fraction form
20,806,161.99/31,221,572.34 = 11,591,846.94/x - Step 3: Cross multiply
20,806,161.99x = 31,221,572.34 × 11,591,846.94 - Step 4: Simplify right side
20,806,161.99x = 361,915,687,951,967.94 - Step 5: Solve for x
x = 361,915,687,951,967.94/20,806,161.99 - Step 6: Final answer
x = 17,394,639.54
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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.