Home / 81,873,846.70-122,474,846.85-73,811,689.90

Finding the Fourth Proportional to 81,873,846.70, 122,474,846.85 and 73,811,689.90

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Solution

The fourth proportional to 81,873,846.70, 122,474,846.85 and 73,811,689.90 is: 110,414,690.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,873,846.70 : 122,474,846.85 = 73,811,689.90 : x
  2. Step 2: Convert to fraction form
    81,873,846.70/122,474,846.85 = 73,811,689.90/x
  3. Step 3: Cross multiply
    81,873,846.70x = 122,474,846.85 × 73,811,689.90
  4. Step 4: Simplify right side
    81,873,846.70x = 9,040,075,416,242,192
  5. Step 5: Solve for x
    x = 9,040,075,416,242,192/81,873,846.70
  6. Step 6: Final answer
    x = 110,414,690.17

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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.