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Finding the Fourth Proportional to 378,329,876.80, 567,494,815.20 and 105,700,206.40

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Solution

The fourth proportional to 378,329,876.80, 567,494,815.20 and 105,700,206.40 is: 158,550,309.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,329,876.80 : 567,494,815.20 = 105,700,206.40 : x
  2. Step 2: Convert to fraction form
    378,329,876.80/567,494,815.20 = 105,700,206.40/x
  3. Step 3: Cross multiply
    378,329,876.80x = 567,494,815.20 × 105,700,206.40
  4. Step 4: Simplify right side
    378,329,876.80x = 59,984,319,097,569,864
  5. Step 5: Solve for x
    x = 59,984,319,097,569,864/378,329,876.80
  6. Step 6: Final answer
    x = 158,550,309.60

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