Finding the Fourth Proportional to 19,128,997.26, 28,571,583.06 and 17,304,555.42
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Solution
The fourth proportional to 19,128,997.26, 28,571,583.06 and 17,304,555.42 is: 25,846,547.82
Step by Step Solution
- Step 1: Write the proportion equation
19,128,997.26 : 28,571,583.06 = 17,304,555.42 : x - Step 2: Convert to fraction form
19,128,997.26/28,571,583.06 = 17,304,555.42/x - Step 3: Cross multiply
19,128,997.26x = 28,571,583.06 × 17,304,555.42 - Step 4: Simplify right side
19,128,997.26x = 494,418,542,498,903.19 - Step 5: Solve for x
x = 494,418,542,498,903.19/19,128,997.26 - Step 6: Final answer
x = 25,846,547.82
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.