Home / 30,340,078.81-41,880,694.80-19,886,768.79

Finding the Fourth Proportional to 30,340,078.81, 41,880,694.80 and 19,886,768.79

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Solution

The fourth proportional to 30,340,078.81, 41,880,694.80 and 19,886,768.79 is: 27,451,204.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,340,078.81 : 41,880,694.80 = 19,886,768.79 : x
  2. Step 2: Convert to fraction form
    30,340,078.81/41,880,694.80 = 19,886,768.79/x
  3. Step 3: Cross multiply
    30,340,078.81x = 41,880,694.80 × 19,886,768.79
  4. Step 4: Simplify right side
    30,340,078.81x = 832,871,694,086,742
  5. Step 5: Solve for x
    x = 832,871,694,086,742/30,340,078.81
  6. Step 6: Final answer
    x = 27,451,204.04

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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.