Finding the Fourth Proportional to 7,992,629.92, 11,985,789.12 and 3,199,425.76
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Solution
The fourth proportional to 7,992,629.92, 11,985,789.12 and 3,199,425.76 is: 4,797,875.40
Step by Step Solution
- Step 1: Write the proportion equation
7,992,629.92 : 11,985,789.12 = 3,199,425.76 : x - Step 2: Convert to fraction form
7,992,629.92/11,985,789.12 = 3,199,425.76/x - Step 3: Cross multiply
7,992,629.92x = 11,985,789.12 × 3,199,425.76 - Step 4: Simplify right side
7,992,629.92x = 38,347,642,464,455.73 - Step 5: Solve for x
x = 38,347,642,464,455.73/7,992,629.92 - Step 6: Final answer
x = 4,797,875.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.