Finding the Fourth Proportional to 121,128,096.80, 181,715,764.80 and 52,040,766.80
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Solution
The fourth proportional to 121,128,096.80, 181,715,764.80 and 52,040,766.80 is: 78,071,297.99
Step by Step Solution
- Step 1: Write the proportion equation
121,128,096.80 : 181,715,764.80 = 52,040,766.80 : x - Step 2: Convert to fraction form
121,128,096.80/181,715,764.80 = 52,040,766.80/x - Step 3: Cross multiply
121,128,096.80x = 181,715,764.80 × 52,040,766.80 - Step 4: Simplify right side
121,128,096.80x = 9,456,627,739,840,448 - Step 5: Solve for x
x = 9,456,627,739,840,448/121,128,096.80 - Step 6: Final answer
x = 78,071,297.99
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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.