Finding the Fourth Proportional to 254,761,819.05, 381,575,858.18 and 209,412,187.05
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Solution
The fourth proportional to 254,761,819.05, 381,575,858.18 and 209,412,187.05 is: 313,652,317.62
Step by Step Solution
- Step 1: Write the proportion equation
254,761,819.05 : 381,575,858.18 = 209,412,187.05 : x - Step 2: Convert to fraction form
254,761,819.05/381,575,858.18 = 209,412,187.05/x - Step 3: Cross multiply
254,761,819.05x = 381,575,858.18 × 209,412,187.05 - Step 4: Simplify right side
254,761,819.05x = 79,906,634,985,907,376 - Step 5: Solve for x
x = 79,906,634,985,907,376/254,761,819.05 - Step 6: Final answer
x = 313,652,317.62
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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.