Finding the Fourth Proportional to 11,461,389.56, 15,816,754.88 and 6,305,143.40
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Solution
The fourth proportional to 11,461,389.56, 15,816,754.88 and 6,305,143.40 is: 8,701,118.40
Step by Step Solution
- Step 1: Write the proportion equation
11,461,389.56 : 15,816,754.88 = 6,305,143.40 : x - Step 2: Convert to fraction form
11,461,389.56/15,816,754.88 = 6,305,143.40/x - Step 3: Cross multiply
11,461,389.56x = 15,816,754.88 × 6,305,143.40 - Step 4: Simplify right side
11,461,389.56x = 99,726,907,641,049.80 - Step 5: Solve for x
x = 99,726,907,641,049.80/11,461,389.56 - Step 6: Final answer
x = 8,701,118.40
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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.