Finding the Fourth Proportional to 12,704,441.80, 17,531,821.74 and 7,122,318.44
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Solution
The fourth proportional to 12,704,441.80, 17,531,821.74 and 7,122,318.44 is: 9,828,626.81
Step by Step Solution
- Step 1: Write the proportion equation
12,704,441.80 : 17,531,821.74 = 7,122,318.44 : x - Step 2: Convert to fraction form
12,704,441.80/17,531,821.74 = 7,122,318.44/x - Step 3: Cross multiply
12,704,441.80x = 17,531,821.74 × 7,122,318.44 - Step 4: Simplify right side
12,704,441.80x = 124,867,217,265,594.88 - Step 5: Solve for x
x = 124,867,217,265,594.88/12,704,441.80 - Step 6: Final answer
x = 9,828,626.81
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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.