Finding the Fourth Proportional to 18,517,768.09, 27,794,580.06 and 8,939,867.20
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Solution
The fourth proportional to 18,517,768.09, 27,794,580.06 and 8,939,867.20 is: 13,418,455.91
Step by Step Solution
- Step 1: Write the proportion equation
18,517,768.09 : 27,794,580.06 = 8,939,867.20 : x - Step 2: Convert to fraction form
18,517,768.09/27,794,580.06 = 8,939,867.20/x - Step 3: Cross multiply
18,517,768.09x = 27,794,580.06 × 8,939,867.20 - Step 4: Simplify right side
18,517,768.09x = 248,479,854,580,206.06 - Step 5: Solve for x
x = 248,479,854,580,206.06/18,517,768.09 - Step 6: Final answer
x = 13,418,455.91
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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.