Finding the Fourth Proportional to 19,341,121.80, 29,018,825.10 and 7,982,555.40
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Solution
The fourth proportional to 19,341,121.80, 29,018,825.10 and 7,982,555.40 is: 11,976,780.94
Step by Step Solution
- Step 1: Write the proportion equation
19,341,121.80 : 29,018,825.10 = 7,982,555.40 : x - Step 2: Convert to fraction form
19,341,121.80/29,018,825.10 = 7,982,555.40/x - Step 3: Cross multiply
19,341,121.80x = 29,018,825.10 × 7,982,555.40 - Step 4: Simplify right side
19,341,121.80x = 231,644,379,003,660.56 - Step 5: Solve for x
x = 231,644,379,003,660.56/19,341,121.80 - Step 6: Final answer
x = 11,976,780.94
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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.