Finding the Fourth Proportional to 138,809,638.63, 206,973,462.81 and 134,995,968.08
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Solution
The fourth proportional to 138,809,638.63, 206,973,462.81 and 134,995,968.08 is: 201,287,052.22
Step by Step Solution
- Step 1: Write the proportion equation
138,809,638.63 : 206,973,462.81 = 134,995,968.08 : x - Step 2: Convert to fraction form
138,809,638.63/206,973,462.81 = 134,995,968.08/x - Step 3: Cross multiply
138,809,638.63x = 206,973,462.81 × 134,995,968.08 - Step 4: Simplify right side
138,809,638.63x = 27,940,582,978,905,832 - Step 5: Solve for x
x = 27,940,582,978,905,832/138,809,638.63 - Step 6: Final answer
x = 201,287,052.22
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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.