Finding the Fourth Proportional to 7,940,943.98, 11,911,418.16 and 1,957,311.98
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Solution
The fourth proportional to 7,940,943.98, 11,911,418.16 and 1,957,311.98 is: 2,935,968.51
Step by Step Solution
- Step 1: Write the proportion equation
7,940,943.98 : 11,911,418.16 = 1,957,311.98 : x - Step 2: Convert to fraction form
7,940,943.98/11,911,418.16 = 1,957,311.98/x - Step 3: Cross multiply
7,940,943.98x = 11,911,418.16 × 1,957,311.98 - Step 4: Simplify right side
7,940,943.98x = 23,314,361,463,357.56 - Step 5: Solve for x
x = 23,314,361,463,357.56/7,940,943.98 - Step 6: Final answer
x = 2,935,968.51
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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.