Finding the Fourth Proportional to 81,203,344.71, 121,836,921.75 and 35,733,252.75
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Solution
The fourth proportional to 81,203,344.71, 121,836,921.75 and 35,733,252.75 is: 53,613,918.67
Step by Step Solution
- Step 1: Write the proportion equation
81,203,344.71 : 121,836,921.75 = 35,733,252.75 : x - Step 2: Convert to fraction form
81,203,344.71/121,836,921.75 = 35,733,252.75/x - Step 3: Cross multiply
81,203,344.71x = 121,836,921.75 × 35,733,252.75 - Step 4: Simplify right side
81,203,344.71x = 4,353,629,519,174,722.50 - Step 5: Solve for x
x = 4,353,629,519,174,722.50/81,203,344.71 - Step 6: Final answer
x = 53,613,918.67
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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.