Finding the Fourth Proportional to 11,682,239.28, 16,111,017.36 and 9,728,586.48
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Solution
The fourth proportional to 11,682,239.28, 16,111,017.36 and 9,728,586.48 is: 13,416,727.90
Step by Step Solution
- Step 1: Write the proportion equation
11,682,239.28 : 16,111,017.36 = 9,728,586.48 : x - Step 2: Convert to fraction form
11,682,239.28/16,111,017.36 = 9,728,586.48/x - Step 3: Cross multiply
11,682,239.28x = 16,111,017.36 × 9,728,586.48 - Step 4: Simplify right side
11,682,239.28x = 156,737,425,667,541.28 - Step 5: Solve for x
x = 156,737,425,667,541.28/11,682,239.28 - Step 6: Final answer
x = 13,416,727.90
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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.