Finding the Fourth Proportional to 10,128,546.18, 15,192,753.66 and 2,555,519.22
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Solution
The fourth proportional to 10,128,546.18, 15,192,753.66 and 2,555,519.22 is: 3,833,262.28
Step by Step Solution
- Step 1: Write the proportion equation
10,128,546.18 : 15,192,753.66 = 2,555,519.22 : x - Step 2: Convert to fraction form
10,128,546.18/15,192,753.66 = 2,555,519.22/x - Step 3: Cross multiply
10,128,546.18x = 15,192,753.66 × 2,555,519.22 - Step 4: Simplify right side
10,128,546.18x = 38,825,373,982,855.35 - Step 5: Solve for x
x = 38,825,373,982,855.35/10,128,546.18 - Step 6: Final answer
x = 3,833,262.28
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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.