Home / 286,542,879.20-428,822,295.60-171,609,905.60

Finding the Fourth Proportional to 286,542,879.20, 428,822,295.60 and 171,609,905.60

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Solution

The fourth proportional to 286,542,879.20, 428,822,295.60 and 171,609,905.60 is: 256,820,737.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,542,879.20 : 428,822,295.60 = 171,609,905.60 : x
  2. Step 2: Convert to fraction form
    286,542,879.20/428,822,295.60 = 171,609,905.60/x
  3. Step 3: Cross multiply
    286,542,879.20x = 428,822,295.60 × 171,609,905.60
  4. Step 4: Simplify right side
    286,542,879.20x = 73,590,153,667,091,296
  5. Step 5: Solve for x
    x = 73,590,153,667,091,296/286,542,879.20
  6. Step 6: Final answer
    x = 256,820,737.87

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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.