Finding the Fourth Proportional to 18,212,390.51, 25,134,531.61 and 10,372,234.26
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Solution
The fourth proportional to 18,212,390.51, 25,134,531.61 and 10,372,234.26 is: 14,314,499.23
Step by Step Solution
- Step 1: Write the proportion equation
18,212,390.51 : 25,134,531.61 = 10,372,234.26 : x - Step 2: Convert to fraction form
18,212,390.51/25,134,531.61 = 10,372,234.26/x - Step 3: Cross multiply
18,212,390.51x = 25,134,531.61 × 10,372,234.26 - Step 4: Simplify right side
18,212,390.51x = 260,701,249,874,294.94 - Step 5: Solve for x
x = 260,701,249,874,294.94/18,212,390.51 - Step 6: Final answer
x = 14,314,499.23
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.