Finding the Fourth Proportional to 18,303,704,509, 27,451,470,757.74 and 8,487,776,639.56
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Solution
The fourth proportional to 18,303,704,509, 27,451,470,757.74 and 8,487,776,639.56 is: 12,729,770,200.59
Step by Step Solution
- Step 1: Write the proportion equation
18,303,704,509 : 27,451,470,757.74 = 8,487,776,639.56 : x - Step 2: Convert to fraction form
18,303,704,509/27,451,470,757.74 = 8,487,776,639.56/x - Step 3: Cross multiply
18,303,704,509x = 27,451,470,757.74 × 8,487,776,639.56 - Step 4: Simplify right side
18,303,704,509x = 233,001,952,219,110,047,744 - Step 5: Solve for x
x = 233,001,952,219,110,047,744/18,303,704,509 - Step 6: Final answer
x = 12,729,770,200.59
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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.