Finding the Fourth Proportional to 12,769,349.24, 17,621,556.80 and 6,968,229.68
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Solution
The fourth proportional to 12,769,349.24, 17,621,556.80 and 6,968,229.68 is: 9,616,077.74
Step by Step Solution
- Step 1: Write the proportion equation
12,769,349.24 : 17,621,556.80 = 6,968,229.68 : x - Step 2: Convert to fraction form
12,769,349.24/17,621,556.80 = 6,968,229.68/x - Step 3: Cross multiply
12,769,349.24x = 17,621,556.80 × 6,968,229.68 - Step 4: Simplify right side
12,769,349.24x = 122,791,054,978,616.91 - Step 5: Solve for x
x = 122,791,054,978,616.91/12,769,349.24 - Step 6: Final answer
x = 9,616,077.74
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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.