Home / 117,422,015.20-176,133,022.80-71,505,512.80

Finding the Fourth Proportional to 117,422,015.20, 176,133,022.80 and 71,505,512.80

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Solution

The fourth proportional to 117,422,015.20, 176,133,022.80 and 71,505,512.80 is: 107,258,269.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,422,015.20 : 176,133,022.80 = 71,505,512.80 : x
  2. Step 2: Convert to fraction form
    117,422,015.20/176,133,022.80 = 71,505,512.80/x
  3. Step 3: Cross multiply
    117,422,015.20x = 176,133,022.80 × 71,505,512.80
  4. Step 4: Simplify right side
    117,422,015.20x = 12,594,482,116,328,092
  5. Step 5: Solve for x
    x = 12,594,482,116,328,092/117,422,015.20
  6. Step 6: Final answer
    x = 107,258,269.20

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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.