Finding the Fourth Proportional to 21,722,478.70, 32,555,724.45 and 16,648,638.70
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Solution
The fourth proportional to 21,722,478.70, 32,555,724.45 and 16,648,638.70 is: 24,951,503.07
Step by Step Solution
- Step 1: Write the proportion equation
21,722,478.70 : 32,555,724.45 = 16,648,638.70 : x - Step 2: Convert to fraction form
21,722,478.70/32,555,724.45 = 16,648,638.70/x - Step 3: Cross multiply
21,722,478.70x = 32,555,724.45 × 16,648,638.70 - Step 4: Simplify right side
21,722,478.70x = 542,008,493,984,806.19 - Step 5: Solve for x
x = 542,008,493,984,806.19/21,722,478.70 - Step 6: Final answer
x = 24,951,503.07
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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.