Finding the Fourth Proportional to 122,485,523.40, 183,728,285.10 and 121,635,217.80
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Solution
The fourth proportional to 122,485,523.40, 183,728,285.10 and 121,635,217.80 is: 182,452,826.70
Step by Step Solution
- Step 1: Write the proportion equation
122,485,523.40 : 183,728,285.10 = 121,635,217.80 : x - Step 2: Convert to fraction form
122,485,523.40/183,728,285.10 = 121,635,217.80/x - Step 3: Cross multiply
122,485,523.40x = 183,728,285.10 × 121,635,217.80 - Step 4: Simplify right side
122,485,523.40x = 22,347,829,974,158,992 - Step 5: Solve for x
x = 22,347,829,974,158,992/122,485,523.40 - Step 6: Final answer
x = 182,452,826.70
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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.