Finding the Fourth Proportional to 13,542,609.45, 20,319,612.55 and 8,429,315.97
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Solution
The fourth proportional to 13,542,609.45, 20,319,612.55 and 8,429,315.97 is: 12,647,520.79
Step by Step Solution
- Step 1: Write the proportion equation
13,542,609.45 : 20,319,612.55 = 8,429,315.97 : x - Step 2: Convert to fraction form
13,542,609.45/20,319,612.55 = 8,429,315.97/x - Step 3: Cross multiply
13,542,609.45x = 20,319,612.55 × 8,429,315.97 - Step 4: Simplify right side
13,542,609.45x = 171,280,434,571,927.44 - Step 5: Solve for x
x = 171,280,434,571,927.44/13,542,609.45 - Step 6: Final answer
x = 12,647,520.79
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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.