Finding the Fourth Proportional to 18,550,767.28, 27,828,059.64 and 6,420,209.44
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Solution
The fourth proportional to 18,550,767.28, 27,828,059.64 and 6,420,209.44 is: 9,630,974.75
Step by Step Solution
- Step 1: Write the proportion equation
18,550,767.28 : 27,828,059.64 = 6,420,209.44 : x - Step 2: Convert to fraction form
18,550,767.28/27,828,059.64 = 6,420,209.44/x - Step 3: Cross multiply
18,550,767.28x = 27,828,059.64 × 6,420,209.44 - Step 4: Simplify right side
18,550,767.28x = 178,661,971,197,611.03 - Step 5: Solve for x
x = 178,661,971,197,611.03/18,550,767.28 - Step 6: Final answer
x = 9,630,974.75
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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.