Finding the Fourth Proportional to 13,524,213.28, 18,663,865.68 and 7,412,657.44
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Solution
The fourth proportional to 13,524,213.28, 18,663,865.68 and 7,412,657.44 is: 10,229,714.66
Step by Step Solution
- Step 1: Write the proportion equation
13,524,213.28 : 18,663,865.68 = 7,412,657.44 : x - Step 2: Convert to fraction form
13,524,213.28/18,663,865.68 = 7,412,657.44/x - Step 3: Cross multiply
13,524,213.28x = 18,663,865.68 × 7,412,657.44 - Step 4: Simplify right side
13,524,213.28x = 138,348,842,792,012.67 - Step 5: Solve for x
x = 138,348,842,792,012.67/13,524,213.28 - Step 6: Final answer
x = 10,229,714.66
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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.