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Finding the Fourth Proportional to 13,598,978.60, 20,398,467.90 and 13,598,978.60

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Solution

The fourth proportional to 13,598,978.60, 20,398,467.90 and 13,598,978.60 is: 20,398,467.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,598,978.60 : 20,398,467.90 = 13,598,978.60 : x
  2. Step 2: Convert to fraction form
    13,598,978.60/20,398,467.90 = 13,598,978.60/x
  3. Step 3: Cross multiply
    13,598,978.60x = 20,398,467.90 × 13,598,978.60
  4. Step 4: Simplify right side
    13,598,978.60x = 277,398,328,444,886.91
  5. Step 5: Solve for x
    x = 277,398,328,444,886.91/13,598,978.60
  6. Step 6: Final answer
    x = 20,398,467.90

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1.5x scale

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