Home / 4,178,190.64-5,767,666.80-2,821,900.72

Finding the Fourth Proportional to 4,178,190.64, 5,767,666.80 and 2,821,900.72

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Solution

The fourth proportional to 4,178,190.64, 5,767,666.80 and 2,821,900.72 is: 3,895,414.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,178,190.64 : 5,767,666.80 = 2,821,900.72 : x
  2. Step 2: Convert to fraction form
    4,178,190.64/5,767,666.80 = 2,821,900.72/x
  3. Step 3: Cross multiply
    4,178,190.64x = 5,767,666.80 × 2,821,900.72
  4. Step 4: Simplify right side
    4,178,190.64x = 16,275,783,095,640.10
  5. Step 5: Solve for x
    x = 16,275,783,095,640.10/4,178,190.64
  6. Step 6: Final answer
    x = 3,895,414.19

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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.