Home / 39,929,736.48-55,103,073.12-21,595,022.40

Finding the Fourth Proportional to 39,929,736.48, 55,103,073.12 and 21,595,022.40

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Solution

The fourth proportional to 39,929,736.48, 55,103,073.12 and 21,595,022.40 is: 29,801,150.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,929,736.48 : 55,103,073.12 = 21,595,022.40 : x
  2. Step 2: Convert to fraction form
    39,929,736.48/55,103,073.12 = 21,595,022.40/x
  3. Step 3: Cross multiply
    39,929,736.48x = 55,103,073.12 × 21,595,022.40
  4. Step 4: Simplify right side
    39,929,736.48x = 1,189,952,098,335,237.75
  5. Step 5: Solve for x
    x = 1,189,952,098,335,237.75/39,929,736.48
  6. Step 6: Final answer
    x = 29,801,150.80

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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.