Home / 418,556,756.51-627,874,245.50-123,452,163.96

Finding the Fourth Proportional to 418,556,756.51, 627,874,245.50 and 123,452,163.96

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Solution

The fourth proportional to 418,556,756.51, 627,874,245.50 and 123,452,163.96 is: 185,189,781.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,556,756.51 : 627,874,245.50 = 123,452,163.96 : x
  2. Step 2: Convert to fraction form
    418,556,756.51/627,874,245.50 = 123,452,163.96/x
  3. Step 3: Cross multiply
    418,556,756.51x = 627,874,245.50 × 123,452,163.96
  4. Step 4: Simplify right side
    418,556,756.51x = 77,512,434,299,826,272
  5. Step 5: Solve for x
    x = 77,512,434,299,826,272/418,556,756.51
  6. Step 6: Final answer
    x = 185,189,781.54

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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.