Home / 685,706,619.56-946,259,040.38-403,467,340.82

Finding the Fourth Proportional to 685,706,619.56, 946,259,040.38 and 403,467,340.82

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Solution

The fourth proportional to 685,706,619.56, 946,259,040.38 and 403,467,340.82 is: 556,775,460.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,706,619.56 : 946,259,040.38 = 403,467,340.82 : x
  2. Step 2: Convert to fraction form
    685,706,619.56/946,259,040.38 = 403,467,340.82/x
  3. Step 3: Cross multiply
    685,706,619.56x = 946,259,040.38 × 403,467,340.82
  4. Step 4: Simplify right side
    685,706,619.56x = 381,784,618,742,254,976
  5. Step 5: Solve for x
    x = 381,784,618,742,254,976/685,706,619.56
  6. Step 6: Final answer
    x = 556,775,460.31

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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.