Finding the Fourth Proportional to 13,619,992.76, 18,795,735.44 and 7,508,639.96
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Solution
The fourth proportional to 13,619,992.76, 18,795,735.44 and 7,508,639.96 is: 10,362,003.32
Step by Step Solution
- Step 1: Write the proportion equation
13,619,992.76 : 18,795,735.44 = 7,508,639.96 : x - Step 2: Convert to fraction form
13,619,992.76/18,795,735.44 = 7,508,639.96/x - Step 3: Cross multiply
13,619,992.76x = 18,795,735.44 × 7,508,639.96 - Step 4: Simplify right side
13,619,992.76x = 141,130,410,202,372.19 - Step 5: Solve for x
x = 141,130,410,202,372.19/13,619,992.76 - Step 6: Final answer
x = 10,362,003.32
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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.