Finding the Fourth Proportional to 1,076,211,571.56, 1,614,317,378.70 and 258,323,872.68
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Solution
The fourth proportional to 1,076,211,571.56, 1,614,317,378.70 and 258,323,872.68 is: 387,485,814.15
Step by Step Solution
- Step 1: Write the proportion equation
1,076,211,571.56 : 1,614,317,378.70 = 258,323,872.68 : x - Step 2: Convert to fraction form
1,076,211,571.56/1,614,317,378.70 = 258,323,872.68/x - Step 3: Cross multiply
1,076,211,571.56x = 1,614,317,378.70 × 258,323,872.68 - Step 4: Simplify right side
1,076,211,571.56x = 417,016,717,000,410,176 - Step 5: Solve for x
x = 417,016,717,000,410,176/1,076,211,571.56 - Step 6: Final answer
x = 387,485,814.15
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.