Finding the Fourth Proportional to 126,029,163.20, 189,043,744.80 and 49,326,699.20
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Solution
The fourth proportional to 126,029,163.20, 189,043,744.80 and 49,326,699.20 is: 73,990,048.80
Step by Step Solution
- Step 1: Write the proportion equation
126,029,163.20 : 189,043,744.80 = 49,326,699.20 : x - Step 2: Convert to fraction form
126,029,163.20/189,043,744.80 = 49,326,699.20/x - Step 3: Cross multiply
126,029,163.20x = 189,043,744.80 × 49,326,699.20 - Step 4: Simplify right side
126,029,163.20x = 9,324,903,935,391,166 - Step 5: Solve for x
x = 9,324,903,935,391,166/126,029,163.20 - Step 6: Final answer
x = 73,990,048.80
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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.