Home / 279,887,018.67-386,383,920.80-174,074,540.58

Finding the Fourth Proportional to 279,887,018.67, 386,383,920.80 and 174,074,540.58

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Solution

The fourth proportional to 279,887,018.67, 386,383,920.80 and 174,074,540.58 is: 240,309,835.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,887,018.67 : 386,383,920.80 = 174,074,540.58 : x
  2. Step 2: Convert to fraction form
    279,887,018.67/386,383,920.80 = 174,074,540.58/x
  3. Step 3: Cross multiply
    279,887,018.67x = 386,383,920.80 × 174,074,540.58
  4. Step 4: Simplify right side
    279,887,018.67x = 67,259,603,499,888,744
  5. Step 5: Solve for x
    x = 67,259,603,499,888,744/279,887,018.67
  6. Step 6: Final answer
    x = 240,309,835.80

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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.