Finding the Fourth Proportional to 3,899,704,840.09, 5,381,138,664.95 and 2,183,147,993.45
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Solution
The fourth proportional to 3,899,704,840.09, 5,381,138,664.95 and 2,183,147,993.45 is: 3,012,490,062.86
Step by Step Solution
- Step 1: Write the proportion equation
3,899,704,840.09 : 5,381,138,664.95 = 2,183,147,993.45 : x - Step 2: Convert to fraction form
3,899,704,840.09/5,381,138,664.95 = 2,183,147,993.45/x - Step 3: Cross multiply
3,899,704,840.09x = 5,381,138,664.95 × 2,183,147,993.45 - Step 4: Simplify right side
3,899,704,840.09x = 11,747,822,078,864,340,992 - Step 5: Solve for x
x = 11,747,822,078,864,340,992/3,899,704,840.09 - Step 6: Final answer
x = 3,012,490,062.86
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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.