Finding the Fourth Proportional to 121,303,861.36, 181,770,639.38 and 72,022,670.09
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Solution
The fourth proportional to 121,303,861.36, 181,770,639.38 and 72,022,670.09 is: 107,924,073.03
Step by Step Solution
- Step 1: Write the proportion equation
121,303,861.36 : 181,770,639.38 = 72,022,670.09 : x - Step 2: Convert to fraction form
121,303,861.36/181,770,639.38 = 72,022,670.09/x - Step 3: Cross multiply
121,303,861.36x = 181,770,639.38 × 72,022,670.09 - Step 4: Simplify right side
121,303,861.36x = 13,091,606,792,114,102 - Step 5: Solve for x
x = 13,091,606,792,114,102/121,303,861.36 - Step 6: Final answer
x = 107,924,073.03
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.