Finding the Fourth Proportional to 126,122,415.30, 189,183,622.95 and 126,122,415.30
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Solution
The fourth proportional to 126,122,415.30, 189,183,622.95 and 126,122,415.30 is: 189,183,622.95
Step by Step Solution
- Step 1: Write the proportion equation
126,122,415.30 : 189,183,622.95 = 126,122,415.30 : x - Step 2: Convert to fraction form
126,122,415.30/189,183,622.95 = 126,122,415.30/x - Step 3: Cross multiply
126,122,415.30x = 189,183,622.95 × 126,122,415.30 - Step 4: Simplify right side
126,122,415.30x = 23,860,295,461,658,508 - Step 5: Solve for x
x = 23,860,295,461,658,508/126,122,415.30 - Step 6: Final answer
x = 189,183,622.95
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1.5x scale
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.