Home / 928,493,845.80-1,392,740,768.70-892,781,010.60

Finding the Fourth Proportional to 928,493,845.80, 1,392,740,768.70 and 892,781,010.60

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Solution

The fourth proportional to 928,493,845.80, 1,392,740,768.70 and 892,781,010.60 is: 1,339,171,515.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,493,845.80 : 1,392,740,768.70 = 892,781,010.60 : x
  2. Step 2: Convert to fraction form
    928,493,845.80/1,392,740,768.70 = 892,781,010.60/x
  3. Step 3: Cross multiply
    928,493,845.80x = 1,392,740,768.70 × 892,781,010.60
  4. Step 4: Simplify right side
    928,493,845.80x = 1,243,412,510,983,806,976
  5. Step 5: Solve for x
    x = 1,243,412,510,983,806,976/928,493,845.80
  6. Step 6: Final answer
    x = 1,339,171,515.90

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1.5x scale

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.