Finding the Fourth Proportional to 138,158,325.97, 190,589,660.64 and 82,364,432.17
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Solution
The fourth proportional to 138,158,325.97, 190,589,660.64 and 82,364,432.17 is: 113,621,883.19
Step by Step Solution
- Step 1: Write the proportion equation
138,158,325.97 : 190,589,660.64 = 82,364,432.17 : x - Step 2: Convert to fraction form
138,158,325.97/190,589,660.64 = 82,364,432.17/x - Step 3: Cross multiply
138,158,325.97x = 190,589,660.64 × 82,364,432.17 - Step 4: Simplify right side
138,158,325.97x = 15,697,809,175,442,520 - Step 5: Solve for x
x = 15,697,809,175,442,520/138,158,325.97 - Step 6: Final answer
x = 113,621,883.19
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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.