Finding the Fourth Proportional to 12,156,408.26, 18,235,889.43 and 3,959,689.23
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Solution
The fourth proportional to 12,156,408.26, 18,235,889.43 and 3,959,689.23 is: 5,939,949.82
Step by Step Solution
- Step 1: Write the proportion equation
12,156,408.26 : 18,235,889.43 = 3,959,689.23 : x - Step 2: Convert to fraction form
12,156,408.26/18,235,889.43 = 3,959,689.23/x - Step 3: Cross multiply
12,156,408.26x = 18,235,889.43 × 3,959,689.23 - Step 4: Simplify right side
12,156,408.26x = 72,208,454,975,441.84 - Step 5: Solve for x
x = 72,208,454,975,441.84/12,156,408.26 - Step 6: Final answer
x = 5,939,949.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.