Finding the Fourth Proportional to 12,727,729.56, 17,567,967.97 and 8,318,118.54
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Solution
The fourth proportional to 12,727,729.56, 17,567,967.97 and 8,318,118.54 is: 11,481,422.46
Step by Step Solution
- Step 1: Write the proportion equation
12,727,729.56 : 17,567,967.97 = 8,318,118.54 : x - Step 2: Convert to fraction form
12,727,729.56/17,567,967.97 = 8,318,118.54/x - Step 3: Cross multiply
12,727,729.56x = 17,567,967.97 × 8,318,118.54 - Step 4: Simplify right side
12,727,729.56x = 146,132,440,081,383.16 - Step 5: Solve for x
x = 146,132,440,081,383.16/12,727,729.56 - Step 6: Final answer
x = 11,481,422.46
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1.5x scale
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.