Home / 254,761,777.80-381,575,796.30-209,412,145.80

Finding the Fourth Proportional to 254,761,777.80, 381,575,796.30 and 209,412,145.80

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Solution

The fourth proportional to 254,761,777.80, 381,575,796.30 and 209,412,145.80 is: 313,652,255.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,761,777.80 : 381,575,796.30 = 209,412,145.80 : x
  2. Step 2: Convert to fraction form
    254,761,777.80/381,575,796.30 = 209,412,145.80/x
  3. Step 3: Cross multiply
    254,761,777.80x = 381,575,796.30 × 209,412,145.80
  4. Step 4: Simplify right side
    254,761,777.80x = 79,906,606,288,526,704
  5. Step 5: Solve for x
    x = 79,906,606,288,526,704/254,761,777.80
  6. Step 6: Final answer
    x = 313,652,255.76

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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.