Home / 851,150,466.40-1,275,733,676.40-391,135,136.80

Finding the Fourth Proportional to 851,150,466.40, 1,275,733,676.40 and 391,135,136.80

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Solution

The fourth proportional to 851,150,466.40, 1,275,733,676.40 and 391,135,136.80 is: 586,246,833.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,150,466.40 : 1,275,733,676.40 = 391,135,136.80 : x
  2. Step 2: Convert to fraction form
    851,150,466.40/1,275,733,676.40 = 391,135,136.80/x
  3. Step 3: Cross multiply
    851,150,466.40x = 1,275,733,676.40 × 391,135,136.80
  4. Step 4: Simplify right side
    851,150,466.40x = 498,984,266,039,080,960
  5. Step 5: Solve for x
    x = 498,984,266,039,080,960/851,150,466.40
  6. Step 6: Final answer
    x = 586,246,833.83

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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.