Finding the Fourth Proportional to 189,189,538.24, 261,210,656.48 and 122,370,465.12
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Solution
The fourth proportional to 189,189,538.24, 261,210,656.48 and 122,370,465.12 is: 168,954,741.50
Step by Step Solution
- Step 1: Write the proportion equation
189,189,538.24 : 261,210,656.48 = 122,370,465.12 : x - Step 2: Convert to fraction form
189,189,538.24/261,210,656.48 = 122,370,465.12/x - Step 3: Cross multiply
189,189,538.24x = 261,210,656.48 × 122,370,465.12 - Step 4: Simplify right side
189,189,538.24x = 31,964,469,527,758,140 - Step 5: Solve for x
x = 31,964,469,527,758,140/189,189,538.24 - Step 6: Final answer
x = 168,954,741.50
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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.