Finding the Fourth Proportional to 8,305,266.20, 12,457,899.30 and 8,193,291.80
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Solution
The fourth proportional to 8,305,266.20, 12,457,899.30 and 8,193,291.80 is: 12,289,937.70
Step by Step Solution
- Step 1: Write the proportion equation
8,305,266.20 : 12,457,899.30 = 8,193,291.80 : x - Step 2: Convert to fraction form
8,305,266.20/12,457,899.30 = 8,193,291.80/x - Step 3: Cross multiply
8,305,266.20x = 12,457,899.30 × 8,193,291.80 - Step 4: Simplify right side
8,305,266.20x = 102,071,204,179,915.75 - Step 5: Solve for x
x = 102,071,204,179,915.75/8,305,266.20 - Step 6: Final answer
x = 12,289,937.70
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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.