Finding the Fourth Proportional to 12,126,063.35, 16,729,993.40 and 8,641,950.95
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Solution
The fourth proportional to 12,126,063.35, 16,729,993.40 and 8,641,950.95 is: 11,923,060.12
Step by Step Solution
- Step 1: Write the proportion equation
12,126,063.35 : 16,729,993.40 = 8,641,950.95 : x - Step 2: Convert to fraction form
12,126,063.35/16,729,993.40 = 8,641,950.95/x - Step 3: Cross multiply
12,126,063.35x = 16,729,993.40 × 8,641,950.95 - Step 4: Simplify right side
12,126,063.35x = 144,579,782,355,238.97 - Step 5: Solve for x
x = 144,579,782,355,238.97/12,126,063.35 - Step 6: Final answer
x = 11,923,060.12
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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.