Home / 1,275,906,852-1,760,752,164.24-689,195,993.76

Finding the Fourth Proportional to 1,275,906,852, 1,760,752,164.24 and 689,195,993.76

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Solution

The fourth proportional to 1,275,906,852, 1,760,752,164.24 and 689,195,993.76 is: 951,090,854.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,906,852 : 1,760,752,164.24 = 689,195,993.76 : x
  2. Step 2: Convert to fraction form
    1,275,906,852/1,760,752,164.24 = 689,195,993.76/x
  3. Step 3: Cross multiply
    1,275,906,852x = 1,760,752,164.24 × 689,195,993.76
  4. Step 4: Simplify right side
    1,275,906,852x = 1,213,503,337,598,457,600
  5. Step 5: Solve for x
    x = 1,213,503,337,598,457,600/1,275,906,852
  6. Step 6: Final answer
    x = 951,090,854.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.