Home / 168,440,018.30-252,660,027.45-82,133,999.90

Finding the Fourth Proportional to 168,440,018.30, 252,660,027.45 and 82,133,999.90

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Solution

The fourth proportional to 168,440,018.30, 252,660,027.45 and 82,133,999.90 is: 123,200,999.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,440,018.30 : 252,660,027.45 = 82,133,999.90 : x
  2. Step 2: Convert to fraction form
    168,440,018.30/252,660,027.45 = 82,133,999.90/x
  3. Step 3: Cross multiply
    168,440,018.30x = 252,660,027.45 × 82,133,999.90
  4. Step 4: Simplify right side
    168,440,018.30x = 20,751,978,669,312,296
  5. Step 5: Solve for x
    x = 20,751,978,669,312,296/168,440,018.30
  6. Step 6: Final answer
    x = 123,200,999.85

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1.5x scale

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.