Home / 28,542,485.04-39,388,917.72-15,489,856.68

Finding the Fourth Proportional to 28,542,485.04, 39,388,917.72 and 15,489,856.68

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Solution

The fourth proportional to 28,542,485.04, 39,388,917.72 and 15,489,856.68 is: 21,376,158.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,542,485.04 : 39,388,917.72 = 15,489,856.68 : x
  2. Step 2: Convert to fraction form
    28,542,485.04/39,388,917.72 = 15,489,856.68/x
  3. Step 3: Cross multiply
    28,542,485.04x = 39,388,917.72 × 15,489,856.68
  4. Step 4: Simplify right side
    28,542,485.04x = 610,128,690,263,112.38
  5. Step 5: Solve for x
    x = 610,128,690,263,112.38/28,542,485.04
  6. Step 6: Final answer
    x = 21,376,158.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.