Finding the Fourth Proportional to 12,481,617.30, 18,722,425.95 and 11,287,223.70
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Solution
The fourth proportional to 12,481,617.30, 18,722,425.95 and 11,287,223.70 is: 16,930,835.55
Step by Step Solution
- Step 1: Write the proportion equation
12,481,617.30 : 18,722,425.95 = 11,287,223.70 : x - Step 2: Convert to fraction form
12,481,617.30/18,722,425.95 = 11,287,223.70/x - Step 3: Cross multiply
12,481,617.30x = 18,722,425.95 × 11,287,223.70 - Step 4: Simplify right side
12,481,617.30x = 211,324,209,904,335 - Step 5: Solve for x
x = 211,324,209,904,335/12,481,617.30 - Step 6: Final answer
x = 16,930,835.55
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1.5x scale
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.