Home / 699,779,149.30-1,049,262,626.12-331,311,008.20

Finding the Fourth Proportional to 699,779,149.30, 1,049,262,626.12 and 331,311,008.20

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Solution

The fourth proportional to 699,779,149.30, 1,049,262,626.12 and 331,311,008.20 is: 496,774,244.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,779,149.30 : 1,049,262,626.12 = 331,311,008.20 : x
  2. Step 2: Convert to fraction form
    699,779,149.30/1,049,262,626.12 = 331,311,008.20/x
  3. Step 3: Cross multiply
    699,779,149.30x = 1,049,262,626.12 × 331,311,008.20
  4. Step 4: Simplify right side
    699,779,149.30x = 347,632,258,526,396,864
  5. Step 5: Solve for x
    x = 347,632,258,526,396,864/699,779,149.30
  6. Step 6: Final answer
    x = 496,774,244.95

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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.