Finding the Fourth Proportional to 14,956,149.56, 20,639,445.61 and 8,340,745.21
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Solution
The fourth proportional to 14,956,149.56, 20,639,445.61 and 8,340,745.21 is: 11,510,205.64
Step by Step Solution
- Step 1: Write the proportion equation
14,956,149.56 : 20,639,445.61 = 8,340,745.21 : x - Step 2: Convert to fraction form
14,956,149.56/20,639,445.61 = 8,340,745.21/x - Step 3: Cross multiply
14,956,149.56x = 20,639,445.61 × 8,340,745.21 - Step 4: Simplify right side
14,956,149.56x = 172,148,357,036,212.56 - Step 5: Solve for x
x = 172,148,357,036,212.56/14,956,149.56 - Step 6: Final answer
x = 11,510,205.64
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1.5x scale
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.