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Finding the Fourth Proportional to 12,551,978.70, 18,819,110.70 and 5,731,819.20

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Solution

The fourth proportional to 12,551,978.70, 18,819,110.70 and 5,731,819.20 is: 8,593,684.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551,978.70 : 18,819,110.70 = 5,731,819.20 : x
  2. Step 2: Convert to fraction form
    12,551,978.70/18,819,110.70 = 5,731,819.20/x
  3. Step 3: Cross multiply
    12,551,978.70x = 18,819,110.70 × 5,731,819.20
  4. Step 4: Simplify right side
    12,551,978.70x = 107,867,740,037,185.44
  5. Step 5: Solve for x
    x = 107,867,740,037,185.44/12,551,978.70
  6. Step 6: Final answer
    x = 8,593,684.12

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Why These Related Problems?

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