Home / 815,761,765.76-1,125,751,398.75-444,483,797.13

Finding the Fourth Proportional to 815,761,765.76, 1,125,751,398.75 and 444,483,797.13

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Solution

The fourth proportional to 815,761,765.76, 1,125,751,398.75 and 444,483,797.13 is: 613,387,728.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,761,765.76 : 1,125,751,398.75 = 444,483,797.13 : x
  2. Step 2: Convert to fraction form
    815,761,765.76/1,125,751,398.75 = 444,483,797.13/x
  3. Step 3: Cross multiply
    815,761,765.76x = 1,125,751,398.75 × 444,483,797.13
  4. Step 4: Simplify right side
    815,761,765.76x = 500,378,256,340,808,704
  5. Step 5: Solve for x
    x = 500,378,256,340,808,704/815,761,765.76
  6. Step 6: Final answer
    x = 613,387,728.31

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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.