Finding the Fourth Proportional to 18,126,272.96, 27,189,143.21 and 4,479,418.97
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Solution
The fourth proportional to 18,126,272.96, 27,189,143.21 and 4,479,418.97 is: 6,719,062.66
Step by Step Solution
- Step 1: Write the proportion equation
18,126,272.96 : 27,189,143.21 = 4,479,418.97 : x - Step 2: Convert to fraction form
18,126,272.96/27,189,143.21 = 4,479,418.97/x - Step 3: Cross multiply
18,126,272.96x = 27,189,143.21 × 4,479,418.97 - Step 4: Simplify right side
18,126,272.96x = 121,791,563,736,974.98 - Step 5: Solve for x
x = 121,791,563,736,974.98/18,126,272.96 - Step 6: Final answer
x = 6,719,062.66
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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.