Finding the Fourth Proportional to 7,232,212.44, 9,980,421.89 and 3,969,079.92
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Solution
The fourth proportional to 7,232,212.44, 9,980,421.89 and 3,969,079.92 is: 5,477,313.12
Step by Step Solution
- Step 1: Write the proportion equation
7,232,212.44 : 9,980,421.89 = 3,969,079.92 : x - Step 2: Convert to fraction form
7,232,212.44/9,980,421.89 = 3,969,079.92/x - Step 3: Cross multiply
7,232,212.44x = 9,980,421.89 × 3,969,079.92 - Step 4: Simplify right side
7,232,212.44x = 39,613,092,096,882.05 - Step 5: Solve for x
x = 39,613,092,096,882.05/7,232,212.44 - Step 6: Final answer
x = 5,477,313.12
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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.