Finding the Fourth Proportional to 126,014,777.80, 189,022,166.70 and 54,351,161.80
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Solution
The fourth proportional to 126,014,777.80, 189,022,166.70 and 54,351,161.80 is: 81,526,742.70
Step by Step Solution
- Step 1: Write the proportion equation
126,014,777.80 : 189,022,166.70 = 54,351,161.80 : x - Step 2: Convert to fraction form
126,014,777.80/189,022,166.70 = 54,351,161.80/x - Step 3: Cross multiply
126,014,777.80x = 189,022,166.70 × 54,351,161.80 - Step 4: Simplify right side
126,014,777.80x = 10,273,574,366,098,270 - Step 5: Solve for x
x = 10,273,574,366,098,270/126,014,777.80 - Step 6: Final answer
x = 81,526,742.70
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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.