Finding the Fourth Proportional to 154,912,054.70, 213,782,469.05 and 84,351,533.15
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Solution
The fourth proportional to 154,912,054.70, 213,782,469.05 and 84,351,533.15 is: 116,407,203.17
Step by Step Solution
- Step 1: Write the proportion equation
154,912,054.70 : 213,782,469.05 = 84,351,533.15 : x - Step 2: Convert to fraction form
154,912,054.70/213,782,469.05 = 84,351,533.15/x - Step 3: Cross multiply
154,912,054.70x = 213,782,469.05 × 84,351,533.15 - Step 4: Simplify right side
154,912,054.70x = 18,032,879,025,705,260 - Step 5: Solve for x
x = 18,032,879,025,705,260/154,912,054.70 - Step 6: Final answer
x = 116,407,203.17
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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.