Finding the Fourth Proportional to 87,652,626.81, 120,949,991.99 and 50,494,936.39
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Solution
The fourth proportional to 87,652,626.81, 120,949,991.99 and 50,494,936.39 is: 69,676,886.75
Step by Step Solution
- Step 1: Write the proportion equation
87,652,626.81 : 120,949,991.99 = 50,494,936.39 : x - Step 2: Convert to fraction form
87,652,626.81/120,949,991.99 = 50,494,936.39/x - Step 3: Cross multiply
87,652,626.81x = 120,949,991.99 × 50,494,936.39 - Step 4: Simplify right side
87,652,626.81x = 6,107,362,151,540,566 - Step 5: Solve for x
x = 6,107,362,151,540,566/87,652,626.81 - Step 6: Final answer
x = 69,676,886.75
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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.