Finding the Fourth Proportional to 3,721,793,508.80, 5,135,925,508.39 and 2,028,212,190.66
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Solution
The fourth proportional to 3,721,793,508.80, 5,135,925,508.39 and 2,028,212,190.66 is: 2,798,851,333.86
Step by Step Solution
- Step 1: Write the proportion equation
3,721,793,508.80 : 5,135,925,508.39 = 2,028,212,190.66 : x - Step 2: Convert to fraction form
3,721,793,508.80/5,135,925,508.39 = 2,028,212,190.66/x - Step 3: Cross multiply
3,721,793,508.80x = 5,135,925,508.39 × 2,028,212,190.66 - Step 4: Simplify right side
3,721,793,508.80x = 10,416,746,726,438,256,640 - Step 5: Solve for x
x = 10,416,746,726,438,256,640/3,721,793,508.80 - Step 6: Final answer
x = 2,798,851,333.86
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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.