Finding the Fourth Proportional to 120,370,846.65, 180,499,351.24 and 46,629,163.75
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Solution
The fourth proportional to 120,370,846.65, 180,499,351.24 and 46,629,163.75 is: 69,921,696.49
Step by Step Solution
- Step 1: Write the proportion equation
120,370,846.65 : 180,499,351.24 = 46,629,163.75 : x - Step 2: Convert to fraction form
120,370,846.65/180,499,351.24 = 46,629,163.75/x - Step 3: Cross multiply
120,370,846.65x = 180,499,351.24 × 46,629,163.75 - Step 4: Simplify right side
120,370,846.65x = 8,416,533,805,421,677 - Step 5: Solve for x
x = 8,416,533,805,421,677/120,370,846.65 - Step 6: Final answer
x = 69,921,696.49
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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.