Finding the Fourth Proportional to 7,977,982.36, 11,083,941.88 and 7,882,322.98
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Solution
The fourth proportional to 7,977,982.36, 11,083,941.88 and 7,882,322.98 is: 10,951,040.73
Step by Step Solution
- Step 1: Write the proportion equation
7,977,982.36 : 11,083,941.88 = 7,882,322.98 : x - Step 2: Convert to fraction form
7,977,982.36/11,083,941.88 = 7,882,322.98/x - Step 3: Cross multiply
7,977,982.36x = 11,083,941.88 × 7,882,322.98 - Step 4: Simplify right side
7,977,982.36x = 87,367,209,789,708.41 - Step 5: Solve for x
x = 87,367,209,789,708.41/7,977,982.36 - Step 6: Final answer
x = 10,951,040.73
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.