Home / 151,782,993.78-209,460,291.57-82,168,353.78

Finding the Fourth Proportional to 151,782,993.78, 209,460,291.57 and 82,168,353.78

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Solution

The fourth proportional to 151,782,993.78, 209,460,291.57 and 82,168,353.78 is: 113,392,198.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,782,993.78 : 209,460,291.57 = 82,168,353.78 : x
  2. Step 2: Convert to fraction form
    151,782,993.78/209,460,291.57 = 82,168,353.78/x
  3. Step 3: Cross multiply
    151,782,993.78x = 209,460,291.57 × 82,168,353.78
  4. Step 4: Simplify right side
    151,782,993.78x = 17,211,007,340,585,712
  5. Step 5: Solve for x
    x = 17,211,007,340,585,712/151,782,993.78
  6. Step 6: Final answer
    x = 113,392,198.37

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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.