Finding the Fourth Proportional to 126,212,740.11, 189,379,066.46 and 87,410,904.12
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Solution
The fourth proportional to 126,212,740.11, 189,379,066.46 and 87,410,904.12 is: 131,157,879.99
Step by Step Solution
- Step 1: Write the proportion equation
126,212,740.11 : 189,379,066.46 = 87,410,904.12 : x - Step 2: Convert to fraction form
126,212,740.11/189,379,066.46 = 87,410,904.12/x - Step 3: Cross multiply
126,212,740.11x = 189,379,066.46 × 87,410,904.12 - Step 4: Simplify right side
126,212,740.11x = 16,553,795,420,233,116 - Step 5: Solve for x
x = 16,553,795,420,233,116/126,212,740.11 - Step 6: Final answer
x = 131,157,879.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.