Home / 521,108,267.22-781,687,540.62-171,346,591.68

Finding the Fourth Proportional to 521,108,267.22, 781,687,540.62 and 171,346,591.68

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Solution

The fourth proportional to 521,108,267.22, 781,687,540.62 and 171,346,591.68 is: 257,028,153.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,108,267.22 : 781,687,540.62 = 171,346,591.68 : x
  2. Step 2: Convert to fraction form
    521,108,267.22/781,687,540.62 = 171,346,591.68/x
  3. Step 3: Cross multiply
    521,108,267.22x = 781,687,540.62 × 171,346,591.68
  4. Step 4: Simplify right side
    521,108,267.22x = 133,939,495,843,958,560
  5. Step 5: Solve for x
    x = 133,939,495,843,958,560/521,108,267.22
  6. Step 6: Final answer
    x = 257,028,153.78

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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.