Finding the Fourth Proportional to 3,779,388.10, 5,215,330.86 and 2,147,568.99
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Solution
The fourth proportional to 3,779,388.10, 5,215,330.86 and 2,147,568.99 is: 2,963,517.51
Step by Step Solution
- Step 1: Write the proportion equation
3,779,388.10 : 5,215,330.86 = 2,147,568.99 : x - Step 2: Convert to fraction form
3,779,388.10/5,215,330.86 = 2,147,568.99/x - Step 3: Cross multiply
3,779,388.10x = 5,215,330.86 × 2,147,568.99 - Step 4: Simplify right side
3,779,388.10x = 11,200,282,827,526.03 - Step 5: Solve for x
x = 11,200,282,827,526.03/3,779,388.10 - Step 6: Final answer
x = 2,963,517.51
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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.