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Finding the Fourth Proportional to 169,907,978.70, 254,484,054.45 and 139,674,890.70

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Solution

The fourth proportional to 169,907,978.70, 254,484,054.45 and 139,674,890.70 is: 209,201,667.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,907,978.70 : 254,484,054.45 = 139,674,890.70 : x
  2. Step 2: Convert to fraction form
    169,907,978.70/254,484,054.45 = 139,674,890.70/x
  3. Step 3: Cross multiply
    169,907,978.70x = 254,484,054.45 × 139,674,890.70
  4. Step 4: Simplify right side
    169,907,978.70x = 35,545,032,490,196,592
  5. Step 5: Solve for x
    x = 35,545,032,490,196,592/169,907,978.70
  6. Step 6: Final answer
    x = 209,201,667.64

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