Finding the Fourth Proportional to 20,620,496.24, 28,453,121.51 and 11,916,988.14
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Solution
The fourth proportional to 20,620,496.24, 28,453,121.51 and 11,916,988.14 is: 16,443,615.50
Step by Step Solution
- Step 1: Write the proportion equation
20,620,496.24 : 28,453,121.51 = 11,916,988.14 : x - Step 2: Convert to fraction form
20,620,496.24/28,453,121.51 = 11,916,988.14/x - Step 3: Cross multiply
20,620,496.24x = 28,453,121.51 × 11,916,988.14 - Step 4: Simplify right side
20,620,496.24x = 339,075,511,521,063.94 - Step 5: Solve for x
x = 339,075,511,521,063.94/20,620,496.24 - Step 6: Final answer
x = 16,443,615.50
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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.