Home / 815,761,890.72-1,125,751,571.10-444,483,921.96

Finding the Fourth Proportional to 815,761,890.72, 1,125,751,571.10 and 444,483,921.96

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Solution

The fourth proportional to 815,761,890.72, 1,125,751,571.10 and 444,483,921.96 is: 613,387,900.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,761,890.72 : 1,125,751,571.10 = 444,483,921.96 : x
  2. Step 2: Convert to fraction form
    815,761,890.72/1,125,751,571.10 = 444,483,921.96/x
  3. Step 3: Cross multiply
    815,761,890.72x = 1,125,751,571.10 × 444,483,921.96
  4. Step 4: Simplify right side
    815,761,890.72x = 500,378,473,475,159,744
  5. Step 5: Solve for x
    x = 500,378,473,475,159,744/815,761,890.72
  6. Step 6: Final answer
    x = 613,387,900.52

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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.