Finding the Fourth Proportional to 84,951,556.20, 127,477,100.70 and 31,104,311.40
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Solution
The fourth proportional to 84,951,556.20, 127,477,100.70 and 31,104,311.40 is: 46,674,688.66
Step by Step Solution
- Step 1: Write the proportion equation
84,951,556.20 : 127,477,100.70 = 31,104,311.40 : x - Step 2: Convert to fraction form
84,951,556.20/127,477,100.70 = 31,104,311.40/x - Step 3: Cross multiply
84,951,556.20x = 127,477,100.70 × 31,104,311.40 - Step 4: Simplify right side
84,951,556.20x = 3,965,087,436,541,958 - Step 5: Solve for x
x = 3,965,087,436,541,958/84,951,556.20 - Step 6: Final answer
x = 46,674,688.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.