Finding the Fourth Proportional to 18,568,051.20, 27,852,076.80 and 14,536,972.80
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Solution
The fourth proportional to 18,568,051.20, 27,852,076.80 and 14,536,972.80 is: 21,805,459.20
Step by Step Solution
- Step 1: Write the proportion equation
18,568,051.20 : 27,852,076.80 = 14,536,972.80 : x - Step 2: Convert to fraction form
18,568,051.20/27,852,076.80 = 14,536,972.80/x - Step 3: Cross multiply
18,568,051.20x = 27,852,076.80 × 14,536,972.80 - Step 4: Simplify right side
18,568,051.20x = 404,884,882,865,111.06 - Step 5: Solve for x
x = 404,884,882,865,111.06/18,568,051.20 - Step 6: Final answer
x = 21,805,459.20
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1.5x scale
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.