Finding the Fourth Proportional to 11,589,121.80, 17,383,682.70 and 8,443,393.80
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Solution
The fourth proportional to 11,589,121.80, 17,383,682.70 and 8,443,393.80 is: 12,665,090.70
Step by Step Solution
- Step 1: Write the proportion equation
11,589,121.80 : 17,383,682.70 = 8,443,393.80 : x - Step 2: Convert to fraction form
11,589,121.80/17,383,682.70 = 8,443,393.80/x - Step 3: Cross multiply
11,589,121.80x = 17,383,682.70 × 8,443,393.80 - Step 4: Simplify right side
11,589,121.80x = 146,777,278,730,347.28 - Step 5: Solve for x
x = 146,777,278,730,347.28/11,589,121.80 - Step 6: Final answer
x = 12,665,090.70
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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.