Finding the Fourth Proportional to 18,498,471.20, 27,747,706.80 and 17,616,672.80
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Solution
The fourth proportional to 18,498,471.20, 27,747,706.80 and 17,616,672.80 is: 26,425,009.20
Step by Step Solution
- Step 1: Write the proportion equation
18,498,471.20 : 27,747,706.80 = 17,616,672.80 : x - Step 2: Convert to fraction form
18,498,471.20/27,747,706.80 = 17,616,672.80/x - Step 3: Cross multiply
18,498,471.20x = 27,747,706.80 × 17,616,672.80 - Step 4: Simplify right side
18,498,471.20x = 488,822,271,645,935.06 - Step 5: Solve for x
x = 488,822,271,645,935.06/18,498,471.20 - Step 6: Final answer
x = 26,425,009.20
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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.