Home / 85,978,091.32-128,943,196.98-28,474,846.36

Finding the Fourth Proportional to 85,978,091.32, 128,943,196.98 and 28,474,846.36

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Solution

The fourth proportional to 85,978,091.32, 128,943,196.98 and 28,474,846.36 is: 42,704,340.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,978,091.32 : 128,943,196.98 = 28,474,846.36 : x
  2. Step 2: Convert to fraction form
    85,978,091.32/128,943,196.98 = 28,474,846.36/x
  3. Step 3: Cross multiply
    85,978,091.32x = 128,943,196.98 × 28,474,846.36
  4. Step 4: Simplify right side
    85,978,091.32x = 3,671,637,723,172,716
  5. Step 5: Solve for x
    x = 3,671,637,723,172,716/85,978,091.32
  6. Step 6: Final answer
    x = 42,704,340.92

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