Finding the Fourth Proportional to 13,582,815.36, 18,747,970.25 and 8,005,932.96
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Solution
The fourth proportional to 13,582,815.36, 18,747,970.25 and 8,005,932.96 is: 11,050,359.52
Step by Step Solution
- Step 1: Write the proportion equation
13,582,815.36 : 18,747,970.25 = 8,005,932.96 : x - Step 2: Convert to fraction form
13,582,815.36/18,747,970.25 = 8,005,932.96/x - Step 3: Cross multiply
13,582,815.36x = 18,747,970.25 × 8,005,932.96 - Step 4: Simplify right side
13,582,815.36x = 150,094,992,957,574.44 - Step 5: Solve for x
x = 150,094,992,957,574.44/13,582,815.36 - Step 6: Final answer
x = 11,050,359.52
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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.