Home / 18,698,198.07-28,056,179.49-12,949,777.92

Finding the Fourth Proportional to 18,698,198.07, 28,056,179.49 and 12,949,777.92

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Solution

The fourth proportional to 18,698,198.07, 28,056,179.49 and 12,949,777.92 is: 19,430,818.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,698,198.07 : 28,056,179.49 = 12,949,777.92 : x
  2. Step 2: Convert to fraction form
    18,698,198.07/28,056,179.49 = 12,949,777.92/x
  3. Step 3: Cross multiply
    18,698,198.07x = 28,056,179.49 × 12,949,777.92
  4. Step 4: Simplify right side
    18,698,198.07x = 363,321,293,679,158.81
  5. Step 5: Solve for x
    x = 363,321,293,679,158.81/18,698,198.07
  6. Step 6: Final answer
    x = 19,430,818.54

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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.