Finding the Fourth Proportional to 5,419,390.36, 7,478,071.32 and 2,971,357.21
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Solution
The fourth proportional to 5,419,390.36, 7,478,071.32 and 2,971,357.21 is: 4,100,096.07
Step by Step Solution
- Step 1: Write the proportion equation
5,419,390.36 : 7,478,071.32 = 2,971,357.21 : x - Step 2: Convert to fraction form
5,419,390.36/7,478,071.32 = 2,971,357.21/x - Step 3: Cross multiply
5,419,390.36x = 7,478,071.32 × 2,971,357.21 - Step 4: Simplify right side
5,419,390.36x = 22,220,021,133,576.22 - Step 5: Solve for x
x = 22,220,021,133,576.22/5,419,390.36 - Step 6: Final answer
x = 4,100,096.07
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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.