Home / 38,939,789.04-53,738,579.28-21,536,129.04

Finding the Fourth Proportional to 38,939,789.04, 53,738,579.28 and 21,536,129.04

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Solution

The fourth proportional to 38,939,789.04, 53,738,579.28 and 21,536,129.04 is: 29,720,781.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,939,789.04 : 53,738,579.28 = 21,536,129.04 : x
  2. Step 2: Convert to fraction form
    38,939,789.04/53,738,579.28 = 21,536,129.04/x
  3. Step 3: Cross multiply
    38,939,789.04x = 53,738,579.28 × 21,536,129.04
  4. Step 4: Simplify right side
    38,939,789.04x = 1,157,320,977,800,350.25
  5. Step 5: Solve for x
    x = 1,157,320,977,800,350.25/38,939,789.04
  6. Step 6: Final answer
    x = 29,720,781.91

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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.