Home / 1,340,854,469.20-2,011,366,719.78-420,767,122.96

Finding the Fourth Proportional to 1,340,854,469.20, 2,011,366,719.78 and 420,767,122.96

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Solution

The fourth proportional to 1,340,854,469.20, 2,011,366,719.78 and 420,767,122.96 is: 631,177,362.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,854,469.20 : 2,011,366,719.78 = 420,767,122.96 : x
  2. Step 2: Convert to fraction form
    1,340,854,469.20/2,011,366,719.78 = 420,767,122.96/x
  3. Step 3: Cross multiply
    1,340,854,469.20x = 2,011,366,719.78 × 420,767,122.96
  4. Step 4: Simplify right side
    1,340,854,469.20x = 846,316,987,899,323,008
  5. Step 5: Solve for x
    x = 846,316,987,899,323,008/1,340,854,469.20
  6. Step 6: Final answer
    x = 631,177,362.90

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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.