Finding the Fourth Proportional to 217,291,243.70, 325,936,865.55 and 166,272,907.70
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Solution
The fourth proportional to 217,291,243.70, 325,936,865.55 and 166,272,907.70 is: 249,409,361.55
Step by Step Solution
- Step 1: Write the proportion equation
217,291,243.70 : 325,936,865.55 = 166,272,907.70 : x - Step 2: Convert to fraction form
217,291,243.70/325,936,865.55 = 166,272,907.70/x - Step 3: Cross multiply
217,291,243.70x = 325,936,865.55 × 166,272,907.70 - Step 4: Simplify right side
217,291,243.70x = 54,194,470,361,622,456 - Step 5: Solve for x
x = 54,194,470,361,622,456/217,291,243.70 - Step 6: Final answer
x = 249,409,361.55
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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.