Finding the Fourth Proportional to 261,492,438.70, 360,832,861.11 and 161,004,918.70
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Solution
The fourth proportional to 261,492,438.70, 360,832,861.11 and 161,004,918.70 is: 222,170,345.56
Step by Step Solution
- Step 1: Write the proportion equation
261,492,438.70 : 360,832,861.11 = 161,004,918.70 : x - Step 2: Convert to fraction form
261,492,438.70/360,832,861.11 = 161,004,918.70/x - Step 3: Cross multiply
261,492,438.70x = 360,832,861.11 × 161,004,918.70 - Step 4: Simplify right side
261,492,438.70x = 58,095,865,467,303,936 - Step 5: Solve for x
x = 58,095,865,467,303,936/261,492,438.70 - Step 6: Final answer
x = 222,170,345.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.