Finding the Fourth Proportional to 21,008,497.44, 28,991,947.41 and 11,841,140.19
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Solution
The fourth proportional to 21,008,497.44, 28,991,947.41 and 11,841,140.19 is: 16,340,897.99
Step by Step Solution
- Step 1: Write the proportion equation
21,008,497.44 : 28,991,947.41 = 11,841,140.19 : x - Step 2: Convert to fraction form
21,008,497.44/28,991,947.41 = 11,841,140.19/x - Step 3: Cross multiply
21,008,497.44x = 28,991,947.41 × 11,841,140.19 - Step 4: Simplify right side
21,008,497.44x = 343,297,713,662,917.38 - Step 5: Solve for x
x = 343,297,713,662,917.38/21,008,497.44 - Step 6: Final answer
x = 16,340,897.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.