Finding the Fourth Proportional to 7,231,743.99, 9,980,094.03 and 3,968,676.24
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Solution
The fourth proportional to 7,231,743.99, 9,980,094.03 and 3,968,676.24 is: 5,476,930.89
Step by Step Solution
- Step 1: Write the proportion equation
7,231,743.99 : 9,980,094.03 = 3,968,676.24 : x - Step 2: Convert to fraction form
7,231,743.99/9,980,094.03 = 3,968,676.24/x - Step 3: Cross multiply
7,231,743.99x = 9,980,094.03 × 3,968,676.24 - Step 4: Simplify right side
7,231,743.99x = 39,607,762,049,826.84 - Step 5: Solve for x
x = 39,607,762,049,826.84/7,231,743.99 - Step 6: Final answer
x = 5,476,930.89
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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.