Home / 1,269,452,619.78-1,903,309,626.33-646,461,918.96

Finding the Fourth Proportional to 1,269,452,619.78, 1,903,309,626.33 and 646,461,918.96

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Solution

The fourth proportional to 1,269,452,619.78, 1,903,309,626.33 and 646,461,918.96 is: 969,250,190.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,452,619.78 : 1,903,309,626.33 = 646,461,918.96 : x
  2. Step 2: Convert to fraction form
    1,269,452,619.78/1,903,309,626.33 = 646,461,918.96/x
  3. Step 3: Cross multiply
    1,269,452,619.78x = 1,903,309,626.33 × 646,461,918.96
  4. Step 4: Simplify right side
    1,269,452,619.78x = 1,230,417,193,412,332,288
  5. Step 5: Solve for x
    x = 1,230,417,193,412,332,288/1,269,452,619.78
  6. Step 6: Final answer
    x = 969,250,190.39

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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.