Home / 1,940,229,297.80-2,910,368,829.90-647,764,785.80

Finding the Fourth Proportional to 1,940,229,297.80, 2,910,368,829.90 and 647,764,785.80

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Solution

The fourth proportional to 1,940,229,297.80, 2,910,368,829.90 and 647,764,785.80 is: 971,655,486.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940,229,297.80 : 2,910,368,829.90 = 647,764,785.80 : x
  2. Step 2: Convert to fraction form
    1,940,229,297.80/2,910,368,829.90 = 647,764,785.80/x
  3. Step 3: Cross multiply
    1,940,229,297.80x = 2,910,368,829.90 × 647,764,785.80
  4. Step 4: Simplify right side
    1,940,229,297.80x = 1,885,234,441,699,170,048
  5. Step 5: Solve for x
    x = 1,885,234,441,699,170,048/1,940,229,297.80
  6. Step 6: Final answer
    x = 971,655,486.20

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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.