Finding the Fourth Proportional to 7,415,062.20, 11,122,593.30 and 2,622,907.80
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Solution
The fourth proportional to 7,415,062.20, 11,122,593.30 and 2,622,907.80 is: 3,934,361.70
Step by Step Solution
- Step 1: Write the proportion equation
7,415,062.20 : 11,122,593.30 = 2,622,907.80 : x - Step 2: Convert to fraction form
7,415,062.20/11,122,593.30 = 2,622,907.80/x - Step 3: Cross multiply
7,415,062.20x = 11,122,593.30 × 2,622,907.80 - Step 4: Simplify right side
7,415,062.20x = 29,173,536,722,797.74 - Step 5: Solve for x
x = 29,173,536,722,797.74/7,415,062.20 - Step 6: Final answer
x = 3,934,361.70
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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.