Finding the Fourth Proportional to 3,811,682,970.56, 5,260,280,640.64 and 2,118,131,291.68
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Solution
The fourth proportional to 3,811,682,970.56, 5,260,280,640.64 and 2,118,131,291.68 is: 2,923,109,060.75
Step by Step Solution
- Step 1: Write the proportion equation
3,811,682,970.56 : 5,260,280,640.64 = 2,118,131,291.68 : x - Step 2: Convert to fraction form
3,811,682,970.56/5,260,280,640.64 = 2,118,131,291.68/x - Step 3: Cross multiply
3,811,682,970.56x = 5,260,280,640.64 × 2,118,131,291.68 - Step 4: Simplify right side
3,811,682,970.56x = 11,141,965,027,958,102,016 - Step 5: Solve for x
x = 11,141,965,027,958,102,016/3,811,682,970.56 - Step 6: Final answer
x = 2,923,109,060.75
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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.