Home / 138,017,067.86-206,947,918.47-45,851,464.10

Finding the Fourth Proportional to 138,017,067.86, 206,947,918.47 and 45,851,464.10

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Solution

The fourth proportional to 138,017,067.86, 206,947,918.47 and 45,851,464.10 is: 68,751,388.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,017,067.86 : 206,947,918.47 = 45,851,464.10 : x
  2. Step 2: Convert to fraction form
    138,017,067.86/206,947,918.47 = 45,851,464.10/x
  3. Step 3: Cross multiply
    138,017,067.86x = 206,947,918.47 × 45,851,464.10
  4. Step 4: Simplify right side
    138,017,067.86x = 9,488,865,054,296,932
  5. Step 5: Solve for x
    x = 9,488,865,054,296,932/138,017,067.86
  6. Step 6: Final answer
    x = 68,751,388.52

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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.