Finding the Fourth Proportional to 189,189,539.24, 261,210,657.86 and 122,370,466.12
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Solution
The fourth proportional to 189,189,539.24, 261,210,657.86 and 122,370,466.12 is: 168,954,742.88
Step by Step Solution
- Step 1: Write the proportion equation
189,189,539.24 : 261,210,657.86 = 122,370,466.12 : x - Step 2: Convert to fraction form
189,189,539.24/261,210,657.86 = 122,370,466.12/x - Step 3: Cross multiply
189,189,539.24x = 261,210,657.86 × 122,370,466.12 - Step 4: Simplify right side
189,189,539.24x = 31,964,469,957,840,044 - Step 5: Solve for x
x = 31,964,469,957,840,044/189,189,539.24 - Step 6: Final answer
x = 168,954,742.88
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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.