Home / 83,691,247.05-115,494,022.31-47,021,796.81

Finding the Fourth Proportional to 83,691,247.05, 115,494,022.31 and 47,021,796.81

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Solution

The fourth proportional to 83,691,247.05, 115,494,022.31 and 47,021,796.81 is: 64,890,136.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,691,247.05 : 115,494,022.31 = 47,021,796.81 : x
  2. Step 2: Convert to fraction form
    83,691,247.05/115,494,022.31 = 47,021,796.81/x
  3. Step 3: Cross multiply
    83,691,247.05x = 115,494,022.31 × 47,021,796.81
  4. Step 4: Simplify right side
    83,691,247.05x = 5,430,736,449,595,318
  5. Step 5: Solve for x
    x = 5,430,736,449,595,318/83,691,247.05
  6. Step 6: Final answer
    x = 64,890,136.56

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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.