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Finding the Fourth Proportional to 18,978,643.58, 26,190,653.74 and 10,276,815.87

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Solution

The fourth proportional to 18,978,643.58, 26,190,653.74 and 10,276,815.87 is: 14,182,073.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,978,643.58 : 26,190,653.74 = 10,276,815.87 : x
  2. Step 2: Convert to fraction form
    18,978,643.58/26,190,653.74 = 10,276,815.87/x
  3. Step 3: Cross multiply
    18,978,643.58x = 26,190,653.74 × 10,276,815.87
  4. Step 4: Simplify right side
    18,978,643.58x = 269,156,525,975,214.81
  5. Step 5: Solve for x
    x = 269,156,525,975,214.81/18,978,643.58
  6. Step 6: Final answer
    x = 14,182,073.91

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