Finding the Fourth Proportional to 3,896,219.40, 5,376,767.22 and 2,177,339.40
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Solution
The fourth proportional to 3,896,219.40, 5,376,767.22 and 2,177,339.40 is: 3,004,719.68
Step by Step Solution
- Step 1: Write the proportion equation
3,896,219.40 : 5,376,767.22 = 2,177,339.40 : x - Step 2: Convert to fraction form
3,896,219.40/5,376,767.22 = 2,177,339.40/x - Step 3: Cross multiply
3,896,219.40x = 5,376,767.22 × 2,177,339.40 - Step 4: Simplify right side
3,896,219.40x = 11,707,047,112,734.47 - Step 5: Solve for x
x = 11,707,047,112,734.47/3,896,219.40 - Step 6: Final answer
x = 3,004,719.68
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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.