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Finding the Fourth Proportional to 7,888,978.80, 11,834,650.80 and 3,340,018.80

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Solution

The fourth proportional to 7,888,978.80, 11,834,650.80 and 3,340,018.80 is: 5,010,528.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,888,978.80 : 11,834,650.80 = 3,340,018.80 : x
  2. Step 2: Convert to fraction form
    7,888,978.80/11,834,650.80 = 3,340,018.80/x
  3. Step 3: Cross multiply
    7,888,978.80x = 11,834,650.80 × 3,340,018.80
  4. Step 4: Simplify right side
    7,888,978.80x = 39,527,956,163,435.04
  5. Step 5: Solve for x
    x = 39,527,956,163,435.04/7,888,978.80
  6. Step 6: Final answer
    x = 5,010,528.89

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Why These Related Problems?

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