Home / 18,839,131.20-28,258,956-5,375,956.80

Finding the Fourth Proportional to 18,839,131.20, 28,258,956 and 5,375,956.80

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Solution

The fourth proportional to 18,839,131.20, 28,258,956 and 5,375,956.80 is: 8,064,009.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,839,131.20 : 28,258,956 = 5,375,956.80 : x
  2. Step 2: Convert to fraction form
    18,839,131.20/28,258,956 = 5,375,956.80/x
  3. Step 3: Cross multiply
    18,839,131.20x = 28,258,956 × 5,375,956.80
  4. Step 4: Simplify right side
    18,839,131.20x = 151,918,926,669,100.78
  5. Step 5: Solve for x
    x = 151,918,926,669,100.78/18,839,131.20
  6. Step 6: Final answer
    x = 8,064,009.17

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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.