Finding the Fourth Proportional to 13,369,408.88, 18,450,007.81 and 7,257,837.38
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Solution
The fourth proportional to 13,369,408.88, 18,450,007.81 and 7,257,837.38 is: 10,015,936.94
Step by Step Solution
- Step 1: Write the proportion equation
13,369,408.88 : 18,450,007.81 = 7,257,837.38 : x - Step 2: Convert to fraction form
13,369,408.88/18,450,007.81 = 7,257,837.38/x - Step 3: Cross multiply
13,369,408.88x = 18,450,007.81 × 7,257,837.38 - Step 4: Simplify right side
13,369,408.88x = 133,907,156,234,315.31 - Step 5: Solve for x
x = 133,907,156,234,315.31/13,369,408.88 - Step 6: Final answer
x = 10,015,936.94
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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.