Home / 85,462,139.61-128,193,369.80-20,765,999.43

Finding the Fourth Proportional to 85,462,139.61, 128,193,369.80 and 20,765,999.43

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Solution

The fourth proportional to 85,462,139.61, 128,193,369.80 and 20,765,999.43 is: 31,149,038.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,462,139.61 : 128,193,369.80 = 20,765,999.43 : x
  2. Step 2: Convert to fraction form
    85,462,139.61/128,193,369.80 = 20,765,999.43/x
  3. Step 3: Cross multiply
    85,462,139.61x = 128,193,369.80 × 20,765,999.43
  4. Step 4: Simplify right side
    85,462,139.61x = 2,662,063,444,092,749
  5. Step 5: Solve for x
    x = 2,662,063,444,092,749/85,462,139.61
  6. Step 6: Final answer
    x = 31,149,038.11

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