Home / 378,227,200.80-567,340,801.20-135,898,010.40

Finding the Fourth Proportional to 378,227,200.80, 567,340,801.20 and 135,898,010.40

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Solution

The fourth proportional to 378,227,200.80, 567,340,801.20 and 135,898,010.40 is: 203,847,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,227,200.80 : 567,340,801.20 = 135,898,010.40 : x
  2. Step 2: Convert to fraction form
    378,227,200.80/567,340,801.20 = 135,898,010.40/x
  3. Step 3: Cross multiply
    378,227,200.80x = 567,340,801.20 × 135,898,010.40
  4. Step 4: Simplify right side
    378,227,200.80x = 77,100,486,101,821,936
  5. Step 5: Solve for x
    x = 77,100,486,101,821,936/378,227,200.80
  6. Step 6: Final answer
    x = 203,847,015.60

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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.