Home / 81,422,728.30-122,134,092.45-43,158,976.30

Finding the Fourth Proportional to 81,422,728.30, 122,134,092.45 and 43,158,976.30

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Solution

The fourth proportional to 81,422,728.30, 122,134,092.45 and 43,158,976.30 is: 64,738,464.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,422,728.30 : 122,134,092.45 = 43,158,976.30 : x
  2. Step 2: Convert to fraction form
    81,422,728.30/122,134,092.45 = 43,158,976.30/x
  3. Step 3: Cross multiply
    81,422,728.30x = 122,134,092.45 × 43,158,976.30
  4. Step 4: Simplify right side
    81,422,728.30x = 5,271,182,401,471,559
  5. Step 5: Solve for x
    x = 5,271,182,401,471,559/81,422,728.30
  6. Step 6: Final answer
    x = 64,738,464.45

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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.