Home / 28,260,358.40-42,396,067.20-12,086,278.40

Finding the Fourth Proportional to 28,260,358.40, 42,396,067.20 and 12,086,278.40

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Solution

The fourth proportional to 28,260,358.40, 42,396,067.20 and 12,086,278.40 is: 18,131,782.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,260,358.40 : 42,396,067.20 = 12,086,278.40 : x
  2. Step 2: Convert to fraction form
    28,260,358.40/42,396,067.20 = 12,086,278.40/x
  3. Step 3: Cross multiply
    28,260,358.40x = 42,396,067.20 × 12,086,278.40
  4. Step 4: Simplify right side
    28,260,358.40x = 512,410,671,244,308.56
  5. Step 5: Solve for x
    x = 512,410,671,244,308.56/28,260,358.40
  6. Step 6: Final answer
    x = 18,131,782.48

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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.