Finding the Fourth Proportional to 4,128,278.94, 5,697,863.19 and 2,386,022.40
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Solution
The fourth proportional to 4,128,278.94, 5,697,863.19 and 2,386,022.40 is: 3,293,195.40
Step by Step Solution
- Step 1: Write the proportion equation
4,128,278.94 : 5,697,863.19 = 2,386,022.40 : x - Step 2: Convert to fraction form
4,128,278.94/5,697,863.19 = 2,386,022.40/x - Step 3: Cross multiply
4,128,278.94x = 5,697,863.19 × 2,386,022.40 - Step 4: Simplify right side
4,128,278.94x = 13,595,229,203,475.46 - Step 5: Solve for x
x = 13,595,229,203,475.46/4,128,278.94 - Step 6: Final answer
x = 3,293,195.40
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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.