Home / 1,219,954,965.12-1,829,489,447.88-667,665,556.56

Finding the Fourth Proportional to 1,219,954,965.12, 1,829,489,447.88 and 667,665,556.56

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Solution

The fourth proportional to 1,219,954,965.12, 1,829,489,447.88 and 667,665,556.56 is: 1,001,255,886.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,954,965.12 : 1,829,489,447.88 = 667,665,556.56 : x
  2. Step 2: Convert to fraction form
    1,219,954,965.12/1,829,489,447.88 = 667,665,556.56/x
  3. Step 3: Cross multiply
    1,219,954,965.12x = 1,829,489,447.88 × 667,665,556.56
  4. Step 4: Simplify right side
    1,219,954,965.12x = 1,221,487,090,439,447,296
  5. Step 5: Solve for x
    x = 1,221,487,090,439,447,296/1,219,954,965.12
  6. Step 6: Final answer
    x = 1,001,255,886.79

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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.