Finding the Fourth Proportional to 8,491,684.32, 11,718,408.42 and 4,820,568.84
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Solution
The fourth proportional to 8,491,684.32, 11,718,408.42 and 4,820,568.84 is: 6,652,319.18
Step by Step Solution
- Step 1: Write the proportion equation
8,491,684.32 : 11,718,408.42 = 4,820,568.84 : x - Step 2: Convert to fraction form
8,491,684.32/11,718,408.42 = 4,820,568.84/x - Step 3: Cross multiply
8,491,684.32x = 11,718,408.42 × 4,820,568.84 - Step 4: Simplify right side
8,491,684.32x = 56,489,394,483,845.63 - Step 5: Solve for x
x = 56,489,394,483,845.63/8,491,684.32 - Step 6: Final answer
x = 6,652,319.18
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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.