Finding the Fourth Proportional to 12,383,452.80, 18,559,432.80 and 5,979,916.80
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Solution
The fourth proportional to 12,383,452.80, 18,559,432.80 and 5,979,916.80 is: 8,962,271.33
Step by Step Solution
- Step 1: Write the proportion equation
12,383,452.80 : 18,559,432.80 = 5,979,916.80 : x - Step 2: Convert to fraction form
12,383,452.80/18,559,432.80 = 5,979,916.80/x - Step 3: Cross multiply
12,383,452.80x = 18,559,432.80 × 5,979,916.80 - Step 4: Simplify right side
12,383,452.80x = 110,983,863,999,191.05 - Step 5: Solve for x
x = 110,983,863,999,191.05/12,383,452.80 - Step 6: Final answer
x = 8,962,271.33
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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.