Finding the Fourth Proportional to 221,232,114.45, 331,848,171.68 and 199,313,125.65
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Solution
The fourth proportional to 221,232,114.45, 331,848,171.68 and 199,313,125.65 is: 298,969,688.48
Step by Step Solution
- Step 1: Write the proportion equation
221,232,114.45 : 331,848,171.68 = 199,313,125.65 : x - Step 2: Convert to fraction form
221,232,114.45/331,848,171.68 = 199,313,125.65/x - Step 3: Cross multiply
221,232,114.45x = 331,848,171.68 × 199,313,125.65 - Step 4: Simplify right side
221,232,114.45x = 66,141,696,337,782,048 - Step 5: Solve for x
x = 66,141,696,337,782,048/221,232,114.45 - Step 6: Final answer
x = 298,969,688.48
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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.