Finding the Fourth Proportional to 55,299,783.91, 82,949,717.18 and 18,908,448.97
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Solution
The fourth proportional to 55,299,783.91, 82,949,717.18 and 18,908,448.97 is: 28,362,687.58
Step by Step Solution
- Step 1: Write the proportion equation
55,299,783.91 : 82,949,717.18 = 18,908,448.97 : x - Step 2: Convert to fraction form
55,299,783.91/82,949,717.18 = 18,908,448.97/x - Step 3: Cross multiply
55,299,783.91x = 82,949,717.18 × 18,908,448.97 - Step 4: Simplify right side
55,299,783.91x = 1,568,450,494,373,962.25 - Step 5: Solve for x
x = 1,568,450,494,373,962.25/55,299,783.91 - Step 6: Final answer
x = 28,362,687.58
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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.