Home / 66,081,947,067.36-99,122,796,720.86-20,706,129,180.81

Finding the Fourth Proportional to 66,081,947,067.36, 99,122,796,720.86 and 20,706,129,180.81

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Solution

The fourth proportional to 66,081,947,067.36, 99,122,796,720.86 and 20,706,129,180.81 is: 31,059,154,954.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,081,947,067.36 : 99,122,796,720.86 = 20,706,129,180.81 : x
  2. Step 2: Convert to fraction form
    66,081,947,067.36/99,122,796,720.86 = 20,706,129,180.81/x
  3. Step 3: Cross multiply
    66,081,947,067.36x = 99,122,796,720.86 × 20,706,129,180.81
  4. Step 4: Simplify right side
    66,081,947,067.36x = 2,052,449,433,665,193,639,936
  5. Step 5: Solve for x
    x = 2,052,449,433,665,193,639,936/66,081,947,067.36
  6. Step 6: Final answer
    x = 31,059,154,954.58

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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.