Finding the Fourth Proportional to 8,520,512.91, 11,750,326.32 and 6,783,914.91
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Solution
The fourth proportional to 8,520,512.91, 11,750,326.32 and 6,783,914.91 is: 9,355,447.82
Step by Step Solution
- Step 1: Write the proportion equation
8,520,512.91 : 11,750,326.32 = 6,783,914.91 : x - Step 2: Convert to fraction form
8,520,512.91/11,750,326.32 = 6,783,914.91/x - Step 3: Cross multiply
8,520,512.91x = 11,750,326.32 × 6,783,914.91 - Step 4: Simplify right side
8,520,512.91x = 79,713,213,919,613.44 - Step 5: Solve for x
x = 79,713,213,919,613.44/8,520,512.91 - Step 6: Final answer
x = 9,355,447.82
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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.