Home / 1,407,122,067.88-2,111,007,365.88-486,998,417.44

Finding the Fourth Proportional to 1,407,122,067.88, 2,111,007,365.88 and 486,998,417.44

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Solution

The fourth proportional to 1,407,122,067.88, 2,111,007,365.88 and 486,998,417.44 is: 730,609,852.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,122,067.88 : 2,111,007,365.88 = 486,998,417.44 : x
  2. Step 2: Convert to fraction form
    1,407,122,067.88/2,111,007,365.88 = 486,998,417.44/x
  3. Step 3: Cross multiply
    1,407,122,067.88x = 2,111,007,365.88 × 486,998,417.44
  4. Step 4: Simplify right side
    1,407,122,067.88x = 1,028,057,246,387,743,104
  5. Step 5: Solve for x
    x = 1,028,057,246,387,743,104/1,407,122,067.88
  6. Step 6: Final answer
    x = 730,609,852.45

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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.