Home / 149,738,469.48-206,603,659.26-86,977,280.25

Finding the Fourth Proportional to 149,738,469.48, 206,603,659.26 and 86,977,280.25

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Solution

The fourth proportional to 149,738,469.48, 206,603,659.26 and 86,977,280.25 is: 120,008,067.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,738,469.48 : 206,603,659.26 = 86,977,280.25 : x
  2. Step 2: Convert to fraction form
    149,738,469.48/206,603,659.26 = 86,977,280.25/x
  3. Step 3: Cross multiply
    149,738,469.48x = 206,603,659.26 × 86,977,280.25
  4. Step 4: Simplify right side
    149,738,469.48x = 17,969,824,372,132,526
  5. Step 5: Solve for x
    x = 17,969,824,372,132,526/149,738,469.48
  6. Step 6: Final answer
    x = 120,008,067.63

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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.