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Finding the Fourth Proportional to 308,850,689.89, 463,275,643.61 and 78,819,779.71

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Solution

The fourth proportional to 308,850,689.89, 463,275,643.61 and 78,819,779.71 is: 118,229,569.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,850,689.89 : 463,275,643.61 = 78,819,779.71 : x
  2. Step 2: Convert to fraction form
    308,850,689.89/463,275,643.61 = 78,819,779.71/x
  3. Step 3: Cross multiply
    308,850,689.89x = 463,275,643.61 × 78,819,779.71
  4. Step 4: Simplify right side
    308,850,689.89x = 36,515,284,174,348,664
  5. Step 5: Solve for x
    x = 36,515,284,174,348,664/308,850,689.89
  6. Step 6: Final answer
    x = 118,229,569.72

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