Home / 18,719,231.60-28,078,847.40-8,641,535.60

Finding the Fourth Proportional to 18,719,231.60, 28,078,847.40 and 8,641,535.60

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Solution

The fourth proportional to 18,719,231.60, 28,078,847.40 and 8,641,535.60 is: 12,962,303.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,719,231.60 : 28,078,847.40 = 8,641,535.60 : x
  2. Step 2: Convert to fraction form
    18,719,231.60/28,078,847.40 = 8,641,535.60/x
  3. Step 3: Cross multiply
    18,719,231.60x = 28,078,847.40 × 8,641,535.60
  4. Step 4: Simplify right side
    18,719,231.60x = 242,644,359,414,067.41
  5. Step 5: Solve for x
    x = 242,644,359,414,067.41/18,719,231.60
  6. Step 6: Final answer
    x = 12,962,303.40

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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.