Home / 81,768,978.36-122,708,011.77-42,413,503.28

Finding the Fourth Proportional to 81,768,978.36, 122,708,011.77 and 42,413,503.28

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Solution

The fourth proportional to 81,768,978.36, 122,708,011.77 and 42,413,503.28 is: 63,648,546.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,768,978.36 : 122,708,011.77 = 42,413,503.28 : x
  2. Step 2: Convert to fraction form
    81,768,978.36/122,708,011.77 = 42,413,503.28/x
  3. Step 3: Cross multiply
    81,768,978.36x = 122,708,011.77 × 42,413,503.28
  4. Step 4: Simplify right side
    81,768,978.36x = 5,204,476,659,075,633
  5. Step 5: Solve for x
    x = 5,204,476,659,075,633/81,768,978.36
  6. Step 6: Final answer
    x = 63,648,546.96

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