Home / 149,770,838.34-206,679,907.52-83,691,879.60

Finding the Fourth Proportional to 149,770,838.34, 206,679,907.52 and 83,691,879.60

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Solution

The fourth proportional to 149,770,838.34, 206,679,907.52 and 83,691,879.60 is: 115,492,642.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,770,838.34 : 206,679,907.52 = 83,691,879.60 : x
  2. Step 2: Convert to fraction form
    149,770,838.34/206,679,907.52 = 83,691,879.60/x
  3. Step 3: Cross multiply
    149,770,838.34x = 206,679,907.52 × 83,691,879.60
  4. Step 4: Simplify right side
    149,770,838.34x = 17,297,429,935,902,974
  5. Step 5: Solve for x
    x = 17,297,429,935,902,974/149,770,838.34
  6. Step 6: Final answer
    x = 115,492,642.81

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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.