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Finding the Fourth Proportional to 10,488,978.60, 15,722,408.70 and 5,991,570.60

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Solution

The fourth proportional to 10,488,978.60, 15,722,408.70 and 5,991,570.60 is: 8,981,038.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,488,978.60 : 15,722,408.70 = 5,991,570.60 : x
  2. Step 2: Convert to fraction form
    10,488,978.60/15,722,408.70 = 5,991,570.60/x
  3. Step 3: Cross multiply
    10,488,978.60x = 15,722,408.70 × 5,991,570.60
  4. Step 4: Simplify right side
    10,488,978.60x = 94,201,921,728,104.20
  5. Step 5: Solve for x
    x = 94,201,921,728,104.20/10,488,978.60
  6. Step 6: Final answer
    x = 8,981,038.60

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Why These Related Problems?

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