Finding the Fourth Proportional to 98,784,399.75, 136,322,471.66 and 55,324,335.75
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Solution
The fourth proportional to 98,784,399.75, 136,322,471.66 and 55,324,335.75 is: 76,347,583.34
Step by Step Solution
- Step 1: Write the proportion equation
98,784,399.75 : 136,322,471.66 = 55,324,335.75 : x - Step 2: Convert to fraction form
98,784,399.75/136,322,471.66 = 55,324,335.75/x - Step 3: Cross multiply
98,784,399.75x = 136,322,471.66 × 55,324,335.75 - Step 4: Simplify right side
98,784,399.75x = 7,541,950,192,111,078 - Step 5: Solve for x
x = 7,541,950,192,111,078/98,784,399.75 - Step 6: Final answer
x = 76,347,583.34
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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.