Finding the Fourth Proportional to 3,686,389.17, 5,087,391.87 and 2,054,808.19
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Solution
The fourth proportional to 3,686,389.17, 5,087,391.87 and 2,054,808.19 is: 2,835,732.75
Step by Step Solution
- Step 1: Write the proportion equation
3,686,389.17 : 5,087,391.87 = 2,054,808.19 : x - Step 2: Convert to fraction form
3,686,389.17/5,087,391.87 = 2,054,808.19/x - Step 3: Cross multiply
3,686,389.17x = 5,087,391.87 × 2,054,808.19 - Step 4: Simplify right side
3,686,389.17x = 10,453,614,480,215.42 - Step 5: Solve for x
x = 10,453,614,480,215.42/3,686,389.17 - Step 6: Final answer
x = 2,835,732.75
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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.