Finding the Fourth Proportional to 54,453,924.40, 81,680,886.60 and 54,135,059.80
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Solution
The fourth proportional to 54,453,924.40, 81,680,886.60 and 54,135,059.80 is: 81,202,589.70
Step by Step Solution
- Step 1: Write the proportion equation
54,453,924.40 : 81,680,886.60 = 54,135,059.80 : x - Step 2: Convert to fraction form
54,453,924.40/81,680,886.60 = 54,135,059.80/x - Step 3: Cross multiply
54,453,924.40x = 81,680,886.60 × 54,135,059.80 - Step 4: Simplify right side
54,453,924.40x = 4,421,799,680,608,018 - Step 5: Solve for x
x = 4,421,799,680,608,018/54,453,924.40 - Step 6: Final answer
x = 81,202,589.70
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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.