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Finding the Fourth Proportional to 2,819,104,656.60, 4,228,656,984.90 and 978,665,424.60

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Solution

The fourth proportional to 2,819,104,656.60, 4,228,656,984.90 and 978,665,424.60 is: 1,467,998,136.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819,104,656.60 : 4,228,656,984.90 = 978,665,424.60 : x
  2. Step 2: Convert to fraction form
    2,819,104,656.60/4,228,656,984.90 = 978,665,424.60/x
  3. Step 3: Cross multiply
    2,819,104,656.60x = 4,228,656,984.90 × 978,665,424.60
  4. Step 4: Simplify right side
    2,819,104,656.60x = 4,138,440,383,614,914,560
  5. Step 5: Solve for x
    x = 4,138,440,383,614,914,560/2,819,104,656.60
  6. Step 6: Final answer
    x = 1,467,998,136.90

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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.