Home / 206,489,620.15-309,733,052.40-83,666,125.51

Finding the Fourth Proportional to 206,489,620.15, 309,733,052.40 and 83,666,125.51

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Solution

The fourth proportional to 206,489,620.15, 309,733,052.40 and 83,666,125.51 is: 125,498,629.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,489,620.15 : 309,733,052.40 = 83,666,125.51 : x
  2. Step 2: Convert to fraction form
    206,489,620.15/309,733,052.40 = 83,666,125.51/x
  3. Step 3: Cross multiply
    206,489,620.15x = 309,733,052.40 × 83,666,125.51
  4. Step 4: Simplify right side
    206,489,620.15x = 25,914,164,436,693,808
  5. Step 5: Solve for x
    x = 25,914,164,436,693,808/206,489,620.15
  6. Step 6: Final answer
    x = 125,498,629.99

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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.