Home / 723,681,723.77-1,082,783,277.92-428,735,191.86

Finding the Fourth Proportional to 723,681,723.77, 1,082,783,277.92 and 428,735,191.86

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Solution

The fourth proportional to 723,681,723.77, 1,082,783,277.92 and 428,735,191.86 is: 641,479,922.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,681,723.77 : 1,082,783,277.92 = 428,735,191.86 : x
  2. Step 2: Convert to fraction form
    723,681,723.77/1,082,783,277.92 = 428,735,191.86/x
  3. Step 3: Cross multiply
    723,681,723.77x = 1,082,783,277.92 × 428,735,191.86
  4. Step 4: Simplify right side
    723,681,723.77x = 464,227,296,402,902,720
  5. Step 5: Solve for x
    x = 464,227,296,402,902,720/723,681,723.77
  6. Step 6: Final answer
    x = 641,479,922.95

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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.