Finding the Fourth Proportional to 3,850,051.68, 5,313,006.84 and 2,131,135.20
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Solution
The fourth proportional to 3,850,051.68, 5,313,006.84 and 2,131,135.20 is: 2,940,930.89
Step by Step Solution
- Step 1: Write the proportion equation
3,850,051.68 : 5,313,006.84 = 2,131,135.20 : x - Step 2: Convert to fraction form
3,850,051.68/5,313,006.84 = 2,131,135.20/x - Step 3: Cross multiply
3,850,051.68x = 5,313,006.84 × 2,131,135.20 - Step 4: Simplify right side
3,850,051.68x = 11,322,735,894,564.77 - Step 5: Solve for x
x = 11,322,735,894,564.77/3,850,051.68 - Step 6: Final answer
x = 2,940,930.89
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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.