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Finding the Fourth Proportional to 12,762,978.28, 17,619,413.97 and 9,855,842.92

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Solution

The fourth proportional to 12,762,978.28, 17,619,413.97 and 9,855,842.92 is: 13,606,085.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,762,978.28 : 17,619,413.97 = 9,855,842.92 : x
  2. Step 2: Convert to fraction form
    12,762,978.28/17,619,413.97 = 9,855,842.92/x
  3. Step 3: Cross multiply
    12,762,978.28x = 17,619,413.97 × 9,855,842.92
  4. Step 4: Simplify right side
    12,762,978.28x = 173,654,176,430,773.59
  5. Step 5: Solve for x
    x = 173,654,176,430,773.59/12,762,978.28
  6. Step 6: Final answer
    x = 13,606,085.71

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Why These Related Problems?

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