Finding the Fourth Proportional to 21,409,171.53, 29,544,685.88 and 11,619,615.84
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Solution
The fourth proportional to 21,409,171.53, 29,544,685.88 and 11,619,615.84 is: 16,035,085.69
Step by Step Solution
- Step 1: Write the proportion equation
21,409,171.53 : 29,544,685.88 = 11,619,615.84 : x - Step 2: Convert to fraction form
21,409,171.53/29,544,685.88 = 11,619,615.84/x - Step 3: Cross multiply
21,409,171.53x = 29,544,685.88 × 11,619,615.84 - Step 4: Simplify right side
21,409,171.53x = 343,297,900,068,121.38 - Step 5: Solve for x
x = 343,297,900,068,121.38/21,409,171.53 - Step 6: Final answer
x = 16,035,085.69
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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.