Finding the Fourth Proportional to 228,201,819.50, 342,361,745.96 and 133,634,742.21
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Solution
The fourth proportional to 228,201,819.50, 342,361,745.96 and 133,634,742.21 is: 200,486,673.44
Step by Step Solution
- Step 1: Write the proportion equation
228,201,819.50 : 342,361,745.96 = 133,634,742.21 : x - Step 2: Convert to fraction form
228,201,819.50/342,361,745.96 = 133,634,742.21/x - Step 3: Cross multiply
228,201,819.50x = 342,361,745.96 × 133,634,742.21 - Step 4: Simplify right side
228,201,819.50x = 45,751,423,663,261,928 - Step 5: Solve for x
x = 45,751,423,663,261,928/228,201,819.50 - Step 6: Final answer
x = 200,486,673.44
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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.