Finding the Fourth Proportional to 7,079,542.21, 9,770,518.26 and 4,327,840.58
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Solution
The fourth proportional to 7,079,542.21, 9,770,518.26 and 4,327,840.58 is: 5,972,878.50
Step by Step Solution
- Step 1: Write the proportion equation
7,079,542.21 : 9,770,518.26 = 4,327,840.58 : x - Step 2: Convert to fraction form
7,079,542.21/9,770,518.26 = 4,327,840.58/x - Step 3: Cross multiply
7,079,542.21x = 9,770,518.26 × 4,327,840.58 - Step 4: Simplify right side
7,079,542.21x = 42,285,245,407,193.52 - Step 5: Solve for x
x = 42,285,245,407,193.52/7,079,542.21 - Step 6: Final answer
x = 5,972,878.50
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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.