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Finding the Fourth Proportional to 117,415,666.80, 176,123,500.20 and 81,583,858.80

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Solution

The fourth proportional to 117,415,666.80, 176,123,500.20 and 81,583,858.80 is: 122,375,788.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,415,666.80 : 176,123,500.20 = 81,583,858.80 : x
  2. Step 2: Convert to fraction form
    117,415,666.80/176,123,500.20 = 81,583,858.80/x
  3. Step 3: Cross multiply
    117,415,666.80x = 176,123,500.20 × 81,583,858.80
  4. Step 4: Simplify right side
    117,415,666.80x = 14,368,834,771,678,570
  5. Step 5: Solve for x
    x = 14,368,834,771,678,570/117,415,666.80
  6. Step 6: Final answer
    x = 122,375,788.20

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