Home / 78,814,969.92-108,764,009.07-43,051,440.24

Finding the Fourth Proportional to 78,814,969.92, 108,764,009.07 and 43,051,440.24

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Solution

The fourth proportional to 78,814,969.92, 108,764,009.07 and 43,051,440.24 is: 59,410,632.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,814,969.92 : 108,764,009.07 = 43,051,440.24 : x
  2. Step 2: Convert to fraction form
    78,814,969.92/108,764,009.07 = 43,051,440.24/x
  3. Step 3: Cross multiply
    78,814,969.92x = 108,764,009.07 × 43,051,440.24
  4. Step 4: Simplify right side
    78,814,969.92x = 4,682,447,236,739,923
  5. Step 5: Solve for x
    x = 4,682,447,236,739,923/78,814,969.92
  6. Step 6: Final answer
    x = 59,410,632.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.