Finding the Fourth Proportional to 189,490,873.44, 261,353,417.64 and 163,073,163.68
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Solution
The fourth proportional to 189,490,873.44, 261,353,417.64 and 163,073,163.68 is: 224,917,052.10
Step by Step Solution
- Step 1: Write the proportion equation
189,490,873.44 : 261,353,417.64 = 163,073,163.68 : x - Step 2: Convert to fraction form
189,490,873.44/261,353,417.64 = 163,073,163.68/x - Step 3: Cross multiply
189,490,873.44x = 261,353,417.64 × 163,073,163.68 - Step 4: Simplify right side
189,490,873.44x = 42,619,728,653,135,120 - Step 5: Solve for x
x = 42,619,728,653,135,120/189,490,873.44 - Step 6: Final answer
x = 224,917,052.10
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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.