Finding the Fourth Proportional to 1,999,540,543.39, 2,761,220,768.54 and 1,496,876,655.26
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Solution
The fourth proportional to 1,999,540,543.39, 2,761,220,768.54 and 1,496,876,655.26 is: 2,067,078,320.62
Step by Step Solution
- Step 1: Write the proportion equation
1,999,540,543.39 : 2,761,220,768.54 = 1,496,876,655.26 : x - Step 2: Convert to fraction form
1,999,540,543.39/2,761,220,768.54 = 1,496,876,655.26/x - Step 3: Cross multiply
1,999,540,543.39x = 2,761,220,768.54 × 1,496,876,655.26 - Step 4: Simplify right side
1,999,540,543.39x = 4,133,206,908,446,020,608 - Step 5: Solve for x
x = 4,133,206,908,446,020,608/1,999,540,543.39 - Step 6: Final answer
x = 2,067,078,320.62
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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.