Home / 31,422,379.20-43,362,201.60-18,192,112.32

Finding the Fourth Proportional to 31,422,379.20, 43,362,201.60 and 18,192,112.32

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Solution

The fourth proportional to 31,422,379.20, 43,362,201.60 and 18,192,112.32 is: 25,104,720.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,422,379.20 : 43,362,201.60 = 18,192,112.32 : x
  2. Step 2: Convert to fraction form
    31,422,379.20/43,362,201.60 = 18,192,112.32/x
  3. Step 3: Cross multiply
    31,422,379.20x = 43,362,201.60 × 18,192,112.32
  4. Step 4: Simplify right side
    31,422,379.20x = 788,850,041,949,683.75
  5. Step 5: Solve for x
    x = 788,850,041,949,683.75/31,422,379.20
  6. Step 6: Final answer
    x = 25,104,720.33

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1.5x scale

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.