Home / 723,681,738.03-1,082,783,299.28-428,735,206.11

Finding the Fourth Proportional to 723,681,738.03, 1,082,783,299.28 and 428,735,206.11

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Solution

The fourth proportional to 723,681,738.03, 1,082,783,299.28 and 428,735,206.11 is: 641,479,944.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,681,738.03 : 1,082,783,299.28 = 428,735,206.11 : x
  2. Step 2: Convert to fraction form
    723,681,738.03/1,082,783,299.28 = 428,735,206.11/x
  3. Step 3: Cross multiply
    723,681,738.03x = 1,082,783,299.28 × 428,735,206.11
  4. Step 4: Simplify right side
    723,681,738.03x = 464,227,320,987,132,992
  5. Step 5: Solve for x
    x = 464,227,320,987,132,992/723,681,738.03
  6. Step 6: Final answer
    x = 641,479,944.28

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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.