Finding the Fourth Proportional to 54,396,917.20, 81,595,375.80 and 18,495,125.20
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Solution
The fourth proportional to 54,396,917.20, 81,595,375.80 and 18,495,125.20 is: 27,742,687.80
Step by Step Solution
- Step 1: Write the proportion equation
54,396,917.20 : 81,595,375.80 = 18,495,125.20 : x - Step 2: Convert to fraction form
54,396,917.20/81,595,375.80 = 18,495,125.20/x - Step 3: Cross multiply
54,396,917.20x = 81,595,375.80 × 18,495,125.20 - Step 4: Simplify right side
54,396,917.20x = 1,509,116,691,162,050 - Step 5: Solve for x
x = 1,509,116,691,162,050/54,396,917.20 - Step 6: Final answer
x = 27,742,687.80
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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.