Home / 138,017,067.36-206,947,917.72-45,851,463.60

Finding the Fourth Proportional to 138,017,067.36, 206,947,917.72 and 45,851,463.60

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Solution

The fourth proportional to 138,017,067.36, 206,947,917.72 and 45,851,463.60 is: 68,751,387.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,017,067.36 : 206,947,917.72 = 45,851,463.60 : x
  2. Step 2: Convert to fraction form
    138,017,067.36/206,947,917.72 = 45,851,463.60/x
  3. Step 3: Cross multiply
    138,017,067.36x = 206,947,917.72 × 45,851,463.60
  4. Step 4: Simplify right side
    138,017,067.36x = 9,488,864,916,434,376
  5. Step 5: Solve for x
    x = 9,488,864,916,434,376/138,017,067.36
  6. Step 6: Final answer
    x = 68,751,387.77

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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.