Finding the Fourth Proportional to 20,715,503.08, 28,589,096.78 and 11,424,890.68
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Solution
The fourth proportional to 20,715,503.08, 28,589,096.78 and 11,424,890.68 is: 15,767,288.11
Step by Step Solution
- Step 1: Write the proportion equation
20,715,503.08 : 28,589,096.78 = 11,424,890.68 : x - Step 2: Convert to fraction form
20,715,503.08/28,589,096.78 = 11,424,890.68/x - Step 3: Cross multiply
20,715,503.08x = 28,589,096.78 × 11,424,890.68 - Step 4: Simplify right side
20,715,503.08x = 326,627,305,351,440 - Step 5: Solve for x
x = 326,627,305,351,440/20,715,503.08 - Step 6: Final answer
x = 15,767,288.11
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.