Home / 383,670,018.30-575,505,027.45-141,427,400.70

Finding the Fourth Proportional to 383,670,018.30, 575,505,027.45 and 141,427,400.70

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Solution

The fourth proportional to 383,670,018.30, 575,505,027.45 and 141,427,400.70 is: 212,141,101.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,670,018.30 : 575,505,027.45 = 141,427,400.70 : x
  2. Step 2: Convert to fraction form
    383,670,018.30/575,505,027.45 = 141,427,400.70/x
  3. Step 3: Cross multiply
    383,670,018.30x = 575,505,027.45 × 141,427,400.70
  4. Step 4: Simplify right side
    383,670,018.30x = 81,392,180,122,035,648
  5. Step 5: Solve for x
    x = 81,392,180,122,035,648/383,670,018.30
  6. Step 6: Final answer
    x = 212,141,101.05

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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.