Home / 149,770,856.36-206,679,932.34-83,691,897.50

Finding the Fourth Proportional to 149,770,856.36, 206,679,932.34 and 83,691,897.50

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Solution

The fourth proportional to 149,770,856.36, 206,679,932.34 and 83,691,897.50 is: 115,492,667.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,770,856.36 : 206,679,932.34 = 83,691,897.50 : x
  2. Step 2: Convert to fraction form
    149,770,856.36/206,679,932.34 = 83,691,897.50/x
  3. Step 3: Cross multiply
    149,770,856.36x = 206,679,932.34 × 83,691,897.50
  4. Step 4: Simplify right side
    149,770,856.36x = 17,297,435,711,672,816
  5. Step 5: Solve for x
    x = 17,297,435,711,672,816/149,770,856.36
  6. Step 6: Final answer
    x = 115,492,667.48

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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.