Home / 38,684,581.04-53,383,038.72-21,279,822.68

Finding the Fourth Proportional to 38,684,581.04, 53,383,038.72 and 21,279,822.68

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Solution

The fourth proportional to 38,684,581.04, 53,383,038.72 and 21,279,822.68 is: 29,365,229.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,684,581.04 : 53,383,038.72 = 21,279,822.68 : x
  2. Step 2: Convert to fraction form
    38,684,581.04/53,383,038.72 = 21,279,822.68/x
  3. Step 3: Cross multiply
    38,684,581.04x = 53,383,038.72 × 21,279,822.68
  4. Step 4: Simplify right side
    38,684,581.04x = 1,135,981,598,081,174.25
  5. Step 5: Solve for x
    x = 1,135,981,598,081,174.25/38,684,581.04
  6. Step 6: Final answer
    x = 29,365,229.44

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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.