Home / 18,674,942.60-27,928,433.10-15,651,633.80

Finding the Fourth Proportional to 18,674,942.60, 27,928,433.10 and 15,651,633.80

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Solution

The fourth proportional to 18,674,942.60, 27,928,433.10 and 15,651,633.80 is: 23,407,065.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,674,942.60 : 27,928,433.10 = 15,651,633.80 : x
  2. Step 2: Convert to fraction form
    18,674,942.60/27,928,433.10 = 15,651,633.80/x
  3. Step 3: Cross multiply
    18,674,942.60x = 27,928,433.10 × 15,651,633.80
  4. Step 4: Simplify right side
    18,674,942.60x = 437,125,607,488,998.81
  5. Step 5: Solve for x
    x = 437,125,607,488,998.81/18,674,942.60
  6. Step 6: Final answer
    x = 23,407,065.65

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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.