Home / 78,716,279,584.25-108,703,489,234.82-74,427,866,869.80

Finding the Fourth Proportional to 78,716,279,584.25, 108,703,489,234.82 and 74,427,866,869.80

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Solution

The fourth proportional to 78,716,279,584.25, 108,703,489,234.82 and 74,427,866,869.80 is: 102,781,392,461.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,716,279,584.25 : 108,703,489,234.82 = 74,427,866,869.80 : x
  2. Step 2: Convert to fraction form
    78,716,279,584.25/108,703,489,234.82 = 74,427,866,869.80/x
  3. Step 3: Cross multiply
    78,716,279,584.25x = 108,703,489,234.82 × 74,427,866,869.80
  4. Step 4: Simplify right side
    78,716,279,584.25x = 8,090,568,825,051,920,990,208
  5. Step 5: Solve for x
    x = 8,090,568,825,051,920,990,208/78,716,279,584.25
  6. Step 6: Final answer
    x = 102,781,392,461.43

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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.