Finding the Fourth Proportional to 12,127,529.70, 18,193,918.95 and 3,608,727.30
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Solution
The fourth proportional to 12,127,529.70, 18,193,918.95 and 3,608,727.30 is: 5,413,871.88
Step by Step Solution
- Step 1: Write the proportion equation
12,127,529.70 : 18,193,918.95 = 3,608,727.30 : x - Step 2: Convert to fraction form
12,127,529.70/18,193,918.95 = 3,608,727.30/x - Step 3: Cross multiply
12,127,529.70x = 18,193,918.95 × 3,608,727.30 - Step 4: Simplify right side
12,127,529.70x = 65,656,892,008,852.33 - Step 5: Solve for x
x = 65,656,892,008,852.33/12,127,529.70 - Step 6: Final answer
x = 5,413,871.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.