Home / 87,205,870,028.26-120,366,491,839.63-56,797,827,739.12

Finding the Fourth Proportional to 87,205,870,028.26, 120,366,491,839.63 and 56,797,827,739.12

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Solution

The fourth proportional to 87,205,870,028.26, 120,366,491,839.63 and 56,797,827,739.12 is: 78,395,585,834.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,205,870,028.26 : 120,366,491,839.63 = 56,797,827,739.12 : x
  2. Step 2: Convert to fraction form
    87,205,870,028.26/120,366,491,839.63 = 56,797,827,739.12/x
  3. Step 3: Cross multiply
    87,205,870,028.26x = 120,366,491,839.63 × 56,797,827,739.12
  4. Step 4: Simplify right side
    87,205,870,028.26x = 6,836,555,269,069,499,006,976
  5. Step 5: Solve for x
    x = 6,836,555,269,069,499,006,976/87,205,870,028.26
  6. Step 6: Final answer
    x = 78,395,585,834.46

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Double scale
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1.5x scale

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.