Finding the Fourth Proportional to 120,965,535.80, 181,448,303.70 and 69,947,199.80
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Solution
The fourth proportional to 120,965,535.80, 181,448,303.70 and 69,947,199.80 is: 104,920,799.70
Step by Step Solution
- Step 1: Write the proportion equation
120,965,535.80 : 181,448,303.70 = 69,947,199.80 : x - Step 2: Convert to fraction form
120,965,535.80/181,448,303.70 = 69,947,199.80/x - Step 3: Cross multiply
120,965,535.80x = 181,448,303.70 × 69,947,199.80 - Step 4: Simplify right side
120,965,535.80x = 12,691,800,752,274,978 - Step 5: Solve for x
x = 12,691,800,752,274,978/120,965,535.80 - Step 6: Final answer
x = 104,920,799.70
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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.