Finding the Fourth Proportional to 3,919,521,306.94, 5,408,923,091.29 and 2,135,369,205.58
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Solution
The fourth proportional to 3,919,521,306.94, 5,408,923,091.29 and 2,135,369,205.58 is: 2,946,800,616.72
Step by Step Solution
- Step 1: Write the proportion equation
3,919,521,306.94 : 5,408,923,091.29 = 2,135,369,205.58 : x - Step 2: Convert to fraction form
3,919,521,306.94/5,408,923,091.29 = 2,135,369,205.58/x - Step 3: Cross multiply
3,919,521,306.94x = 5,408,923,091.29 × 2,135,369,205.58 - Step 4: Simplify right side
3,919,521,306.94x = 11,550,047,804,512,509,952 - Step 5: Solve for x
x = 11,550,047,804,512,509,952/3,919,521,306.94 - Step 6: Final answer
x = 2,946,800,616.72
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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.