Home / 81,679,667.44-122,519,057.24-47,113,662.64

Finding the Fourth Proportional to 81,679,667.44, 122,519,057.24 and 47,113,662.64

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Solution

The fourth proportional to 81,679,667.44, 122,519,057.24 and 47,113,662.64 is: 70,670,237.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,679,667.44 : 122,519,057.24 = 47,113,662.64 : x
  2. Step 2: Convert to fraction form
    81,679,667.44/122,519,057.24 = 47,113,662.64/x
  3. Step 3: Cross multiply
    81,679,667.44x = 122,519,057.24 × 47,113,662.64
  4. Step 4: Simplify right side
    81,679,667.44x = 5,772,321,529,776,209
  5. Step 5: Solve for x
    x = 5,772,321,529,776,209/81,679,667.44
  6. Step 6: Final answer
    x = 70,670,237.90

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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.