Finding the Fourth Proportional to 20,317,105.44, 28,036,149.84 and 11,615,644.80
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Solution
The fourth proportional to 20,317,105.44, 28,036,149.84 and 11,615,644.80 is: 16,028,757.59
Step by Step Solution
- Step 1: Write the proportion equation
20,317,105.44 : 28,036,149.84 = 11,615,644.80 : x - Step 2: Convert to fraction form
20,317,105.44/28,036,149.84 = 11,615,644.80/x - Step 3: Cross multiply
20,317,105.44x = 28,036,149.84 × 11,615,644.80 - Step 4: Simplify right side
20,317,105.44x = 325,657,958,101,016.88 - Step 5: Solve for x
x = 325,657,958,101,016.88/20,317,105.44 - Step 6: Final answer
x = 16,028,757.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.