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Finding the Fourth Proportional to 556,339,624.63, 767,770,273.80 and 305,454,591.28

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Solution

The fourth proportional to 556,339,624.63, 767,770,273.80 and 305,454,591.28 is: 421,539,190.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,339,624.63 : 767,770,273.80 = 305,454,591.28 : x
  2. Step 2: Convert to fraction form
    556,339,624.63/767,770,273.80 = 305,454,591.28/x
  3. Step 3: Cross multiply
    556,339,624.63x = 767,770,273.80 × 305,454,591.28
  4. Step 4: Simplify right side
    556,339,624.63x = 234,518,955,180,512,640
  5. Step 5: Solve for x
    x = 234,518,955,180,512,640/556,339,624.63
  6. Step 6: Final answer
    x = 421,539,190.81

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