Finding the Fourth Proportional to 189,626,142.78, 261,705,314.26 and 107,125,241.94
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Solution
The fourth proportional to 189,626,142.78, 261,705,314.26 and 107,125,241.94 is: 147,844,831.39
Step by Step Solution
- Step 1: Write the proportion equation
189,626,142.78 : 261,705,314.26 = 107,125,241.94 : x - Step 2: Convert to fraction form
189,626,142.78/261,705,314.26 = 107,125,241.94/x - Step 3: Cross multiply
189,626,142.78x = 261,705,314.26 × 107,125,241.94 - Step 4: Simplify right side
189,626,142.78x = 28,035,245,107,086,232 - Step 5: Solve for x
x = 28,035,245,107,086,232/189,626,142.78 - Step 6: Final answer
x = 147,844,831.39
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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.