Home / 78,733,984.80-118,100,977.20-73,951,015.80

Finding the Fourth Proportional to 78,733,984.80, 118,100,977.20 and 73,951,015.80

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Solution

The fourth proportional to 78,733,984.80, 118,100,977.20 and 73,951,015.80 is: 110,926,523.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,733,984.80 : 118,100,977.20 = 73,951,015.80 : x
  2. Step 2: Convert to fraction form
    78,733,984.80/118,100,977.20 = 73,951,015.80/x
  3. Step 3: Cross multiply
    78,733,984.80x = 118,100,977.20 × 73,951,015.80
  4. Step 4: Simplify right side
    78,733,984.80x = 8,733,687,230,912,640
  5. Step 5: Solve for x
    x = 8,733,687,230,912,640/78,733,984.80
  6. Step 6: Final answer
    x = 110,926,523.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.