Home / 81,422,704.80-122,134,057.20-43,158,952.80

Finding the Fourth Proportional to 81,422,704.80, 122,134,057.20 and 43,158,952.80

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Solution

The fourth proportional to 81,422,704.80, 122,134,057.20 and 43,158,952.80 is: 64,738,429.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,422,704.80 : 122,134,057.20 = 43,158,952.80 : x
  2. Step 2: Convert to fraction form
    81,422,704.80/122,134,057.20 = 43,158,952.80/x
  3. Step 3: Cross multiply
    81,422,704.80x = 122,134,057.20 × 43,158,952.80
  4. Step 4: Simplify right side
    81,422,704.80x = 5,271,178,009,967,300
  5. Step 5: Solve for x
    x = 5,271,178,009,967,300/81,422,704.80
  6. Step 6: Final answer
    x = 64,738,429.20

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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.