Finding the Fourth Proportional to 18,257,747.22, 27,389,291.40 and 5,479,261.74
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Solution
The fourth proportional to 18,257,747.22, 27,389,291.40 and 5,479,261.74 is: 8,219,694.06
Step by Step Solution
- Step 1: Write the proportion equation
18,257,747.22 : 27,389,291.40 = 5,479,261.74 : x - Step 2: Convert to fraction form
18,257,747.22/27,389,291.40 = 5,479,261.74/x - Step 3: Cross multiply
18,257,747.22x = 27,389,291.40 × 5,479,261.74 - Step 4: Simplify right side
18,257,747.22x = 150,073,096,453,731.03 - Step 5: Solve for x
x = 150,073,096,453,731.03/18,257,747.22 - Step 6: Final answer
x = 8,219,694.06
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1.5x scale
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.