Finding the Fourth Proportional to 8,491,638.96, 12,739,426.20 and 2,426,449.68
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Solution
The fourth proportional to 8,491,638.96, 12,739,426.20 and 2,426,449.68 is: 3,640,236.80
Step by Step Solution
- Step 1: Write the proportion equation
8,491,638.96 : 12,739,426.20 = 2,426,449.68 : x - Step 2: Convert to fraction form
8,491,638.96/12,739,426.20 = 2,426,449.68/x - Step 3: Cross multiply
8,491,638.96x = 12,739,426.20 × 2,426,449.68 - Step 4: Simplify right side
8,491,638.96x = 30,911,576,626,373.62 - Step 5: Solve for x
x = 30,911,576,626,373.62/8,491,638.96 - Step 6: Final answer
x = 3,640,236.80
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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.