Finding the Fourth Proportional to 12,163,464.05, 16,785,586.92 and 6,656,835.68
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Solution
The fourth proportional to 12,163,464.05, 16,785,586.92 and 6,656,835.68 is: 9,186,436.81
Step by Step Solution
- Step 1: Write the proportion equation
12,163,464.05 : 16,785,586.92 = 6,656,835.68 : x - Step 2: Convert to fraction form
12,163,464.05/16,785,586.92 = 6,656,835.68/x - Step 3: Cross multiply
12,163,464.05x = 16,785,586.92 × 6,656,835.68 - Step 4: Simplify right side
12,163,464.05x = 111,738,893,834,869.38 - Step 5: Solve for x
x = 111,738,893,834,869.38/12,163,464.05 - Step 6: Final answer
x = 9,186,436.81
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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.