Home / 154,809,793.43-213,637,550.15-85,195,174.32

Finding the Fourth Proportional to 154,809,793.43, 213,637,550.15 and 85,195,174.32

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Solution

The fourth proportional to 154,809,793.43, 213,637,550.15 and 85,195,174.32 is: 117,569,359.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,809,793.43 : 213,637,550.15 = 85,195,174.32 : x
  2. Step 2: Convert to fraction form
    154,809,793.43/213,637,550.15 = 85,195,174.32/x
  3. Step 3: Cross multiply
    154,809,793.43x = 213,637,550.15 × 85,195,174.32
  4. Step 4: Simplify right side
    154,809,793.43x = 18,200,888,325,939,016
  5. Step 5: Solve for x
    x = 18,200,888,325,939,016/154,809,793.43
  6. Step 6: Final answer
    x = 117,569,359.94

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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.