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Finding the Fourth Proportional to 247,124,889.40, 370,620,978.90 and 103,487,999.80

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Solution

The fourth proportional to 247,124,889.40, 370,620,978.90 and 103,487,999.80 is: 155,204,212.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,124,889.40 : 370,620,978.90 = 103,487,999.80 : x
  2. Step 2: Convert to fraction form
    247,124,889.40/370,620,978.90 = 103,487,999.80/x
  3. Step 3: Cross multiply
    247,124,889.40x = 370,620,978.90 × 103,487,999.80
  4. Step 4: Simplify right side
    247,124,889.40x = 38,354,823,790,279,000
  5. Step 5: Solve for x
    x = 38,354,823,790,279,000/247,124,889.40
  6. Step 6: Final answer
    x = 155,204,212.26

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