Home / 18,954,007.20-28,431,010.80-11,301,256.80

Finding the Fourth Proportional to 18,954,007.20, 28,431,010.80 and 11,301,256.80

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Solution

The fourth proportional to 18,954,007.20, 28,431,010.80 and 11,301,256.80 is: 16,951,885.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,954,007.20 : 28,431,010.80 = 11,301,256.80 : x
  2. Step 2: Convert to fraction form
    18,954,007.20/28,431,010.80 = 11,301,256.80/x
  3. Step 3: Cross multiply
    18,954,007.20x = 28,431,010.80 × 11,301,256.80
  4. Step 4: Simplify right side
    18,954,007.20x = 321,306,154,134,373.50
  5. Step 5: Solve for x
    x = 321,306,154,134,373.50/18,954,007.20
  6. Step 6: Final answer
    x = 16,951,885.20

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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.