Home / 12,015,964.64-18,025,055.16-3,928,981.88

Finding the Fourth Proportional to 12,015,964.64, 18,025,055.16 and 3,928,981.88

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Solution

The fourth proportional to 12,015,964.64, 18,025,055.16 and 3,928,981.88 is: 5,893,835.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,015,964.64 : 18,025,055.16 = 3,928,981.88 : x
  2. Step 2: Convert to fraction form
    12,015,964.64/18,025,055.16 = 3,928,981.88/x
  3. Step 3: Cross multiply
    12,015,964.64x = 18,025,055.16 × 3,928,981.88
  4. Step 4: Simplify right side
    12,015,964.64x = 70,820,115,109,640.50
  5. Step 5: Solve for x
    x = 70,820,115,109,640.50/12,015,964.64
  6. Step 6: Final answer
    x = 5,893,835.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.