Home / 425,765,520.32-638,653,398.08-167,102,556.80

Finding the Fourth Proportional to 425,765,520.32, 638,653,398.08 and 167,102,556.80

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Solution

The fourth proportional to 425,765,520.32, 638,653,398.08 and 167,102,556.80 is: 250,655,843.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,765,520.32 : 638,653,398.08 = 167,102,556.80 : x
  2. Step 2: Convert to fraction form
    425,765,520.32/638,653,398.08 = 167,102,556.80/x
  3. Step 3: Cross multiply
    425,765,520.32x = 638,653,398.08 × 167,102,556.80
  4. Step 4: Simplify right side
    425,765,520.32x = 106,720,615,724,147,424
  5. Step 5: Solve for x
    x = 106,720,615,724,147,424/425,765,520.32
  6. Step 6: Final answer
    x = 250,655,843.73

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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.