Home / 1,212,961,217.87-1,814,654,620.06-918,703,996.88

Finding the Fourth Proportional to 1,212,961,217.87, 1,814,654,620.06 and 918,703,996.88

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Solution

The fourth proportional to 1,212,961,217.87, 1,814,654,620.06 and 918,703,996.88 is: 1,374,430,136.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,961,217.87 : 1,814,654,620.06 = 918,703,996.88 : x
  2. Step 2: Convert to fraction form
    1,212,961,217.87/1,814,654,620.06 = 918,703,996.88/x
  3. Step 3: Cross multiply
    1,212,961,217.87x = 1,814,654,620.06 × 918,703,996.88
  4. Step 4: Simplify right side
    1,212,961,217.87x = 1,667,130,452,394,509,568
  5. Step 5: Solve for x
    x = 1,667,130,452,394,509,568/1,212,961,217.87
  6. Step 6: Final answer
    x = 1,374,430,136.62

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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.