Finding the Fourth Proportional to 19,379,418.80, 29,069,128.20 and 17,584,329.20
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Solution
The fourth proportional to 19,379,418.80, 29,069,128.20 and 17,584,329.20 is: 26,376,493.80
Step by Step Solution
- Step 1: Write the proportion equation
19,379,418.80 : 29,069,128.20 = 17,584,329.20 : x - Step 2: Convert to fraction form
19,379,418.80/29,069,128.20 = 17,584,329.20/x - Step 3: Cross multiply
19,379,418.80x = 29,069,128.20 × 17,584,329.20 - Step 4: Simplify right side
19,379,418.80x = 511,161,119,825,803.38 - Step 5: Solve for x
x = 511,161,119,825,803.38/19,379,418.80 - Step 6: Final answer
x = 26,376,493.80
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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.