Home / 39,457,586.31-54,449,272.68-21,815,468.91

Finding the Fourth Proportional to 39,457,586.31, 54,449,272.68 and 21,815,468.91

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Solution

The fourth proportional to 39,457,586.31, 54,449,272.68 and 21,815,468.91 is: 30,104,132.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,457,586.31 : 54,449,272.68 = 21,815,468.91 : x
  2. Step 2: Convert to fraction form
    39,457,586.31/54,449,272.68 = 21,815,468.91/x
  3. Step 3: Cross multiply
    39,457,586.31x = 54,449,272.68 × 21,815,468.91
  4. Step 4: Simplify right side
    39,457,586.31x = 1,187,836,415,322,652.50
  5. Step 5: Solve for x
    x = 1,187,836,415,322,652.50/39,457,586.31
  6. Step 6: Final answer
    x = 30,104,132.73

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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.