Finding the Fourth Proportional to 138,809,096.65, 206,972,655.94 and 134,995,426.21
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Solution
The fourth proportional to 138,809,096.65, 206,972,655.94 and 134,995,426.21 is: 201,286,245.47
Step by Step Solution
- Step 1: Write the proportion equation
138,809,096.65 : 206,972,655.94 = 134,995,426.21 : x - Step 2: Convert to fraction form
138,809,096.65/206,972,655.94 = 134,995,426.21/x - Step 3: Cross multiply
138,809,096.65x = 206,972,655.94 × 134,995,426.21 - Step 4: Simplify right side
138,809,096.65x = 27,940,361,902,435,988 - Step 5: Solve for x
x = 27,940,361,902,435,988/138,809,096.65 - Step 6: Final answer
x = 201,286,245.47
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.