Finding the Fourth Proportional to 196,805,133.15, 271,589,469.40 and 107,497,134.23
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Solution
The fourth proportional to 196,805,133.15, 271,589,469.40 and 107,497,134.23 is: 148,345,163.46
Step by Step Solution
- Step 1: Write the proportion equation
196,805,133.15 : 271,589,469.40 = 107,497,134.23 : x - Step 2: Convert to fraction form
196,805,133.15/271,589,469.40 = 107,497,134.23/x - Step 3: Cross multiply
196,805,133.15x = 271,589,469.40 × 107,497,134.23 - Step 4: Simplify right side
196,805,133.15x = 29,195,089,646,551,356 - Step 5: Solve for x
x = 29,195,089,646,551,356/196,805,133.15 - Step 6: Final answer
x = 148,345,163.46
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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.