Finding the Fourth Proportional to 13,764,709.14, 18,994,863.87 and 7,569,736.80
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Solution
The fourth proportional to 13,764,709.14, 18,994,863.87 and 7,569,736.80 is: 10,445,997.70
Step by Step Solution
- Step 1: Write the proportion equation
13,764,709.14 : 18,994,863.87 = 7,569,736.80 : x - Step 2: Convert to fraction form
13,764,709.14/18,994,863.87 = 7,569,736.80/x - Step 3: Cross multiply
13,764,709.14x = 18,994,863.87 × 7,569,736.80 - Step 4: Simplify right side
13,764,709.14x = 143,786,120,047,729.41 - Step 5: Solve for x
x = 143,786,120,047,729.41/13,764,709.14 - Step 6: Final answer
x = 10,445,997.70
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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.