Home / 18,821,805.20-28,232,124.60-5,358,633.20

Finding the Fourth Proportional to 18,821,805.20, 28,232,124.60 and 5,358,633.20

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Solution

The fourth proportional to 18,821,805.20, 28,232,124.60 and 5,358,633.20 is: 8,037,783.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821,805.20 : 28,232,124.60 = 5,358,633.20 : x
  2. Step 2: Convert to fraction form
    18,821,805.20/28,232,124.60 = 5,358,633.20/x
  3. Step 3: Cross multiply
    18,821,805.20x = 28,232,124.60 × 5,358,633.20
  4. Step 4: Simplify right side
    18,821,805.20x = 151,285,600,188,096.72
  5. Step 5: Solve for x
    x = 151,285,600,188,096.72/18,821,805.20
  6. Step 6: Final answer
    x = 8,037,783.76

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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.