Finding the Fourth Proportional to 10,114,950.36, 15,156,445.86 and 8,212,396.44
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Solution
The fourth proportional to 10,114,950.36, 15,156,445.86 and 8,212,396.44 is: 12,305,620.65
Step by Step Solution
- Step 1: Write the proportion equation
10,114,950.36 : 15,156,445.86 = 8,212,396.44 : x - Step 2: Convert to fraction form
10,114,950.36/15,156,445.86 = 8,212,396.44/x - Step 3: Cross multiply
10,114,950.36x = 15,156,445.86 × 8,212,396.44 - Step 4: Simplify right side
10,114,950.36x = 124,470,742,023,716.73 - Step 5: Solve for x
x = 124,470,742,023,716.73/10,114,950.36 - Step 6: Final answer
x = 12,305,620.65
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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.