Finding the Fourth Proportional to 7,198,742.61, 9,934,299.91 and 3,935,557.49
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Solution
The fourth proportional to 7,198,742.61, 9,934,299.91 and 3,935,557.49 is: 5,431,088.53
Step by Step Solution
- Step 1: Write the proportion equation
7,198,742.61 : 9,934,299.91 = 3,935,557.49 : x - Step 2: Convert to fraction form
7,198,742.61/9,934,299.91 = 3,935,557.49/x - Step 3: Cross multiply
7,198,742.61x = 9,934,299.91 × 3,935,557.49 - Step 4: Simplify right side
7,198,742.61x = 39,097,008,399,029.04 - Step 5: Solve for x
x = 39,097,008,399,029.04/7,198,742.61 - Step 6: Final answer
x = 5,431,088.53
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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.