Home / 253,395,489.43-380,237,019.54-136,809,291.25

Finding the Fourth Proportional to 253,395,489.43, 380,237,019.54 and 136,809,291.25

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Solution

The fourth proportional to 253,395,489.43, 380,237,019.54 and 136,809,291.25 is: 205,291,567.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,395,489.43 : 380,237,019.54 = 136,809,291.25 : x
  2. Step 2: Convert to fraction form
    253,395,489.43/380,237,019.54 = 136,809,291.25/x
  3. Step 3: Cross multiply
    253,395,489.43x = 380,237,019.54 × 136,809,291.25
  4. Step 4: Simplify right side
    253,395,489.43x = 52,019,957,150,279,800
  5. Step 5: Solve for x
    x = 52,019,957,150,279,800/253,395,489.43
  6. Step 6: Final answer
    x = 205,291,567.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.