Finding the Fourth Proportional to 21,992,486.14, 30,351,293.49 and 12,204,780.94
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Solution
The fourth proportional to 21,992,486.14, 30,351,293.49 and 12,204,780.94 is: 16,843,520.37
Step by Step Solution
- Step 1: Write the proportion equation
21,992,486.14 : 30,351,293.49 = 12,204,780.94 : x - Step 2: Convert to fraction form
21,992,486.14/30,351,293.49 = 12,204,780.94/x - Step 3: Cross multiply
21,992,486.14x = 30,351,293.49 × 12,204,780.94 - Step 4: Simplify right side
21,992,486.14x = 370,430,888,291,098.06 - Step 5: Solve for x
x = 370,430,888,291,098.06/21,992,486.14 - Step 6: Final answer
x = 16,843,520.37
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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.