Home / 188,288,009.10-259,587,834.12-154,671,212.52

Finding the Fourth Proportional to 188,288,009.10, 259,587,834.12 and 154,671,212.52

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Solution

The fourth proportional to 188,288,009.10, 259,587,834.12 and 154,671,212.52 is: 213,241,221.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,288,009.10 : 259,587,834.12 = 154,671,212.52 : x
  2. Step 2: Convert to fraction form
    188,288,009.10/259,587,834.12 = 154,671,212.52/x
  3. Step 3: Cross multiply
    188,288,009.10x = 259,587,834.12 × 154,671,212.52
  4. Step 4: Simplify right side
    188,288,009.10x = 40,150,765,058,781,032
  5. Step 5: Solve for x
    x = 40,150,765,058,781,032/188,288,009.10
  6. Step 6: Final answer
    x = 213,241,221.52

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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.