Home / 138,809,091.89-206,972,648.85-134,995,421.45

Finding the Fourth Proportional to 138,809,091.89, 206,972,648.85 and 134,995,421.45

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Solution

The fourth proportional to 138,809,091.89, 206,972,648.85 and 134,995,421.45 is: 201,286,238.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,809,091.89 : 206,972,648.85 = 134,995,421.45 : x
  2. Step 2: Convert to fraction form
    138,809,091.89/206,972,648.85 = 134,995,421.45/x
  3. Step 3: Cross multiply
    138,809,091.89x = 206,972,648.85 × 134,995,421.45
  4. Step 4: Simplify right side
    138,809,091.89x = 27,940,359,961,152,268
  5. Step 5: Solve for x
    x = 27,940,359,961,152,268/138,809,091.89
  6. Step 6: Final answer
    x = 201,286,238.39

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.