Home / 250,311,155.76-345,430,162.44-138,809,847.60

Finding the Fourth Proportional to 250,311,155.76, 345,430,162.44 and 138,809,847.60

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Solution

The fourth proportional to 250,311,155.76, 345,430,162.44 and 138,809,847.60 is: 191,558,015.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,311,155.76 : 345,430,162.44 = 138,809,847.60 : x
  2. Step 2: Convert to fraction form
    250,311,155.76/345,430,162.44 = 138,809,847.60/x
  3. Step 3: Cross multiply
    250,311,155.76x = 345,430,162.44 × 138,809,847.60
  4. Step 4: Simplify right side
    250,311,155.76x = 47,949,108,204,739,640
  5. Step 5: Solve for x
    x = 47,949,108,204,739,640/250,311,155.76
  6. Step 6: Final answer
    x = 191,558,015.30

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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.