Finding the Fourth Proportional to 7,986,481.94, 11,039,962.97 and 7,123,865.96
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Solution
The fourth proportional to 7,986,481.94, 11,039,962.97 and 7,123,865.96 is: 9,847,542.01
Step by Step Solution
- Step 1: Write the proportion equation
7,986,481.94 : 11,039,962.97 = 7,123,865.96 : x - Step 2: Convert to fraction form
7,986,481.94/11,039,962.97 = 7,123,865.96/x - Step 3: Cross multiply
7,986,481.94x = 11,039,962.97 × 7,123,865.96 - Step 4: Simplify right side
7,986,481.94x = 78,647,216,447,053.08 - Step 5: Solve for x
x = 78,647,216,447,053.08/7,986,481.94 - Step 6: Final answer
x = 9,847,542.01
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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.