Finding the Fourth Proportional to 11,921,503.12, 16,451,217.66 and 6,764,557.12
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Solution
The fourth proportional to 11,921,503.12, 16,451,217.66 and 6,764,557.12 is: 9,334,829.71
Step by Step Solution
- Step 1: Write the proportion equation
11,921,503.12 : 16,451,217.66 = 6,764,557.12 : x - Step 2: Convert to fraction form
11,921,503.12/16,451,217.66 = 6,764,557.12/x - Step 3: Cross multiply
11,921,503.12x = 16,451,217.66 × 6,764,557.12 - Step 4: Simplify right side
11,921,503.12x = 111,285,201,554,622.73 - Step 5: Solve for x
x = 111,285,201,554,622.73/11,921,503.12 - Step 6: Final answer
x = 9,334,829.71
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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.