Finding the Fourth Proportional to 13,639,171.25, 20,458,912.40 and 4,664,423.09
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Solution
The fourth proportional to 13,639,171.25, 20,458,912.40 and 4,664,423.09 is: 6,996,687.82
Step by Step Solution
- Step 1: Write the proportion equation
13,639,171.25 : 20,458,912.40 = 4,664,423.09 : x - Step 2: Convert to fraction form
13,639,171.25/20,458,912.40 = 4,664,423.09/x - Step 3: Cross multiply
13,639,171.25x = 20,458,912.40 × 4,664,423.09 - Step 4: Simplify right side
13,639,171.25x = 95,429,023,371,525.20 - Step 5: Solve for x
x = 95,429,023,371,525.20/13,639,171.25 - Step 6: Final answer
x = 6,996,687.82
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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.