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Finding the Fourth Proportional to 27,289,978.24, 40,869,707.28 and 15,740,433.40

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Solution

The fourth proportional to 27,289,978.24, 40,869,707.28 and 15,740,433.40 is: 23,573,009.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,289,978.24 : 40,869,707.28 = 15,740,433.40 : x
  2. Step 2: Convert to fraction form
    27,289,978.24/40,869,707.28 = 15,740,433.40/x
  3. Step 3: Cross multiply
    27,289,978.24x = 40,869,707.28 × 15,740,433.40
  4. Step 4: Simplify right side
    27,289,978.24x = 643,306,905,518,335.12
  5. Step 5: Solve for x
    x = 643,306,905,518,335.12/27,289,978.24
  6. Step 6: Final answer
    x = 23,573,009.10

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