Home / 731,378,819.82-1,009,253,083.59-401,375,216.46

Finding the Fourth Proportional to 731,378,819.82, 1,009,253,083.59 and 401,375,216.46

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Solution

The fourth proportional to 731,378,819.82, 1,009,253,083.59 and 401,375,216.46 is: 553,870,530.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,378,819.82 : 1,009,253,083.59 = 401,375,216.46 : x
  2. Step 2: Convert to fraction form
    731,378,819.82/1,009,253,083.59 = 401,375,216.46/x
  3. Step 3: Cross multiply
    731,378,819.82x = 1,009,253,083.59 × 401,375,216.46
  4. Step 4: Simplify right side
    731,378,819.82x = 405,089,174,888,858,688
  5. Step 5: Solve for x
    x = 405,089,174,888,858,688/731,378,819.82
  6. Step 6: Final answer
    x = 553,870,530.44

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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.