Finding the Fourth Proportional to 154,912,051.21, 213,782,464.23 and 84,351,529.66
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Solution
The fourth proportional to 154,912,051.21, 213,782,464.23 and 84,351,529.66 is: 116,407,198.35
Step by Step Solution
- Step 1: Write the proportion equation
154,912,051.21 : 213,782,464.23 = 84,351,529.66 : x - Step 2: Convert to fraction form
154,912,051.21/213,782,464.23 = 84,351,529.66/x - Step 3: Cross multiply
154,912,051.21x = 213,782,464.23 × 84,351,529.66 - Step 4: Simplify right side
154,912,051.21x = 18,032,877,870,794,064 - Step 5: Solve for x
x = 18,032,877,870,794,064/154,912,051.21 - Step 6: Final answer
x = 116,407,198.35
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.