Home / 87,205,869,382.67-120,366,490,947.31-56,797,827,093.47

Finding the Fourth Proportional to 87,205,869,382.67, 120,366,490,947.31 and 56,797,827,093.47

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Solution

The fourth proportional to 87,205,869,382.67, 120,366,490,947.31 and 56,797,827,093.47 is: 78,395,584,942.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,205,869,382.67 : 120,366,490,947.31 = 56,797,827,093.47 : x
  2. Step 2: Convert to fraction form
    87,205,869,382.67/120,366,490,947.31 = 56,797,827,093.47/x
  3. Step 3: Cross multiply
    87,205,869,382.67x = 120,366,490,947.31 × 56,797,827,093.47
  4. Step 4: Simplify right side
    87,205,869,382.67x = 6,836,555,140,673,035,042,816
  5. Step 5: Solve for x
    x = 6,836,555,140,673,035,042,816/87,205,869,382.67
  6. Step 6: Final answer
    x = 78,395,584,942.49

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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.