Home / 18,698,182.05-28,056,155.49-12,949,761.90

Finding the Fourth Proportional to 18,698,182.05, 28,056,155.49 and 12,949,761.90

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Solution

The fourth proportional to 18,698,182.05, 28,056,155.49 and 12,949,761.90 is: 19,430,794.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,698,182.05 : 28,056,155.49 = 12,949,761.90 : x
  2. Step 2: Convert to fraction form
    18,698,182.05/28,056,155.49 = 12,949,761.90/x
  3. Step 3: Cross multiply
    18,698,182.05x = 28,056,155.49 × 12,949,761.90
  4. Step 4: Simplify right side
    18,698,182.05x = 363,320,533,530,088.44
  5. Step 5: Solve for x
    x = 363,320,533,530,088.44/18,698,182.05
  6. Step 6: Final answer
    x = 19,430,794.53

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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.