Home / 126,870,666.30-190,305,999.45-120,320,163.90

Finding the Fourth Proportional to 126,870,666.30, 190,305,999.45 and 120,320,163.90

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Solution

The fourth proportional to 126,870,666.30, 190,305,999.45 and 120,320,163.90 is: 180,480,245.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,870,666.30 : 190,305,999.45 = 120,320,163.90 : x
  2. Step 2: Convert to fraction form
    126,870,666.30/190,305,999.45 = 120,320,163.90/x
  3. Step 3: Cross multiply
    126,870,666.30x = 190,305,999.45 × 120,320,163.90
  4. Step 4: Simplify right side
    126,870,666.30x = 22,897,649,044,977,308
  5. Step 5: Solve for x
    x = 22,897,649,044,977,308/126,870,666.30
  6. Step 6: Final answer
    x = 180,480,245.85

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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.