Home / 26,979,778.60-40,469,667.90-18,901,875.40

Finding the Fourth Proportional to 26,979,778.60, 40,469,667.90 and 18,901,875.40

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Solution

The fourth proportional to 26,979,778.60, 40,469,667.90 and 18,901,875.40 is: 28,352,813.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,979,778.60 : 40,469,667.90 = 18,901,875.40 : x
  2. Step 2: Convert to fraction form
    26,979,778.60/40,469,667.90 = 18,901,875.40/x
  3. Step 3: Cross multiply
    26,979,778.60x = 40,469,667.90 × 18,901,875.40
  4. Step 4: Simplify right side
    26,979,778.60x = 764,952,620,125,179.62
  5. Step 5: Solve for x
    x = 764,952,620,125,179.62/26,979,778.60
  6. Step 6: Final answer
    x = 28,352,813.10

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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.