Finding the Fourth Proportional to 12,311,718.36, 18,467,540.28 and 8,653,386.84
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Solution
The fourth proportional to 12,311,718.36, 18,467,540.28 and 8,653,386.84 is: 12,980,054.07
Step by Step Solution
- Step 1: Write the proportion equation
12,311,718.36 : 18,467,540.28 = 8,653,386.84 : x - Step 2: Convert to fraction form
12,311,718.36/18,467,540.28 = 8,653,386.84/x - Step 3: Cross multiply
12,311,718.36x = 18,467,540.28 × 8,653,386.84 - Step 4: Simplify right side
12,311,718.36x = 159,806,770,026,121.94 - Step 5: Solve for x
x = 159,806,770,026,121.94/12,311,718.36 - Step 6: Final answer
x = 12,980,054.07
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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.