Finding the Fourth Proportional to 3,131,083.26, 4,321,101.06 and 1,754,352.18
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Solution
The fourth proportional to 3,131,083.26, 4,321,101.06 and 1,754,352.18 is: 2,421,121.52
Step by Step Solution
- Step 1: Write the proportion equation
3,131,083.26 : 4,321,101.06 = 1,754,352.18 : x - Step 2: Convert to fraction form
3,131,083.26/4,321,101.06 = 1,754,352.18/x - Step 3: Cross multiply
3,131,083.26x = 4,321,101.06 × 1,754,352.18 - Step 4: Simplify right side
3,131,083.26x = 7,580,733,064,611.31 - Step 5: Solve for x
x = 7,580,733,064,611.31/3,131,083.26 - Step 6: Final answer
x = 2,421,121.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.