Home / 815,998,659.30-1,223,878,414.73-401,364,183.87

Finding the Fourth Proportional to 815,998,659.30, 1,223,878,414.73 and 401,364,183.87

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Solution

The fourth proportional to 815,998,659.30, 1,223,878,414.73 and 401,364,183.87 is: 601,987,460.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,998,659.30 : 1,223,878,414.73 = 401,364,183.87 : x
  2. Step 2: Convert to fraction form
    815,998,659.30/1,223,878,414.73 = 401,364,183.87/x
  3. Step 3: Cross multiply
    815,998,659.30x = 1,223,878,414.73 × 401,364,183.87
  4. Step 4: Simplify right side
    815,998,659.30x = 491,220,961,082,208,960
  5. Step 5: Solve for x
    x = 491,220,961,082,208,960/815,998,659.30
  6. Step 6: Final answer
    x = 601,987,460.99

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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.