Home / 376,485,498-519,469,394.40-219,781,483.20

Finding the Fourth Proportional to 376,485,498, 519,469,394.40 and 219,781,483.20

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Solution

The fourth proportional to 376,485,498, 519,469,394.40 and 219,781,483.20 is: 303,251,399.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,485,498 : 519,469,394.40 = 219,781,483.20 : x
  2. Step 2: Convert to fraction form
    376,485,498/519,469,394.40 = 219,781,483.20/x
  3. Step 3: Cross multiply
    376,485,498x = 519,469,394.40 × 219,781,483.20
  4. Step 4: Simplify right side
    376,485,498x = 114,169,753,978,237,760
  5. Step 5: Solve for x
    x = 114,169,753,978,237,760/376,485,498
  6. Step 6: Final answer
    x = 303,251,399.02

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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.