Home / 1,454,120,400.56-2,178,550,149.68-667,831,789.76

Finding the Fourth Proportional to 1,454,120,400.56, 2,178,550,149.68 and 667,831,789.76

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Solution

The fourth proportional to 1,454,120,400.56, 2,178,550,149.68 and 667,831,789.76 is: 1,000,539,601.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,454,120,400.56 : 2,178,550,149.68 = 667,831,789.76 : x
  2. Step 2: Convert to fraction form
    1,454,120,400.56/2,178,550,149.68 = 667,831,789.76/x
  3. Step 3: Cross multiply
    1,454,120,400.56x = 2,178,550,149.68 × 667,831,789.76
  4. Step 4: Simplify right side
    1,454,120,400.56x = 1,454,905,045,528,478,464
  5. Step 5: Solve for x
    x = 1,454,905,045,528,478,464/1,454,120,400.56
  6. Step 6: Final answer
    x = 1,000,539,601.10

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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.