Home / 18,751,408.20-28,127,112.30-5,288,236.20

Finding the Fourth Proportional to 18,751,408.20, 28,127,112.30 and 5,288,236.20

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Solution

The fourth proportional to 18,751,408.20, 28,127,112.30 and 5,288,236.20 is: 7,932,354.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,751,408.20 : 28,127,112.30 = 5,288,236.20 : x
  2. Step 2: Convert to fraction form
    18,751,408.20/28,127,112.30 = 5,288,236.20/x
  3. Step 3: Cross multiply
    18,751,408.20x = 28,127,112.30 × 5,288,236.20
  4. Step 4: Simplify right side
    18,751,408.20x = 148,742,813,466,325.28
  5. Step 5: Solve for x
    x = 148,742,813,466,325.28/18,751,408.20
  6. Step 6: Final answer
    x = 7,932,354.30

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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.