Finding the Fourth Proportional to 281,232,079.80, 421,848,119.70 and 252,605,124.60
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Solution
The fourth proportional to 281,232,079.80, 421,848,119.70 and 252,605,124.60 is: 378,907,686.90
Step by Step Solution
- Step 1: Write the proportion equation
281,232,079.80 : 421,848,119.70 = 252,605,124.60 : x - Step 2: Convert to fraction form
281,232,079.80/421,848,119.70 = 252,605,124.60/x - Step 3: Cross multiply
281,232,079.80x = 421,848,119.70 × 252,605,124.60 - Step 4: Simplify right side
281,232,079.80x = 106,560,996,839,094,208 - Step 5: Solve for x
x = 106,560,996,839,094,208/281,232,079.80 - Step 6: Final answer
x = 378,907,686.90
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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.