Finding the Fourth Proportional to 3,540,303,149.36, 4,885,633,950.70 and 1,954,408,139.32
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Solution
The fourth proportional to 3,540,303,149.36, 4,885,633,950.70 and 1,954,408,139.32 is: 2,697,091,846.70
Step by Step Solution
- Step 1: Write the proportion equation
3,540,303,149.36 : 4,885,633,950.70 = 1,954,408,139.32 : x - Step 2: Convert to fraction form
3,540,303,149.36/4,885,633,950.70 = 1,954,408,139.32/x - Step 3: Cross multiply
3,540,303,149.36x = 4,885,633,950.70 × 1,954,408,139.32 - Step 4: Simplify right side
3,540,303,149.36x = 9,548,522,759,001,255,936 - Step 5: Solve for x
x = 9,548,522,759,001,255,936/3,540,303,149.36 - Step 6: Final answer
x = 2,697,091,846.70
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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.