Home / 206,489,715.14-309,733,194.90-83,666,220.50

Finding the Fourth Proportional to 206,489,715.14, 309,733,194.90 and 83,666,220.50

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Solution

The fourth proportional to 206,489,715.14, 309,733,194.90 and 83,666,220.50 is: 125,498,772.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,489,715.14 : 309,733,194.90 = 83,666,220.50 : x
  2. Step 2: Convert to fraction form
    206,489,715.14/309,733,194.90 = 83,666,220.50/x
  3. Step 3: Cross multiply
    206,489,715.14x = 309,733,194.90 × 83,666,220.50
  4. Step 4: Simplify right side
    206,489,715.14x = 25,914,205,781,761,796
  5. Step 5: Solve for x
    x = 25,914,205,781,761,796/206,489,715.14
  6. Step 6: Final answer
    x = 125,498,772.49

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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.