Finding the Fourth Proportional to 6,907,451.91, 10,361,202.96 and 2,115,121.74
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Solution
The fourth proportional to 6,907,451.91, 10,361,202.96 and 2,115,121.74 is: 3,172,690.29
Step by Step Solution
- Step 1: Write the proportion equation
6,907,451.91 : 10,361,202.96 = 2,115,121.74 : x - Step 2: Convert to fraction form
6,907,451.91/10,361,202.96 = 2,115,121.74/x - Step 3: Cross multiply
6,907,451.91x = 10,361,202.96 × 2,115,121.74 - Step 4: Simplify right side
6,907,451.91x = 21,915,205,633,248.36 - Step 5: Solve for x
x = 21,915,205,633,248.36/6,907,451.91 - Step 6: Final answer
x = 3,172,690.29
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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.