Home / 145,264,782.12-200,463,768.72-79,183,833.54

Finding the Fourth Proportional to 145,264,782.12, 200,463,768.72 and 79,183,833.54

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Solution

The fourth proportional to 145,264,782.12, 200,463,768.72 and 79,183,833.54 is: 109,272,801.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,264,782.12 : 200,463,768.72 = 79,183,833.54 : x
  2. Step 2: Convert to fraction form
    145,264,782.12/200,463,768.72 = 79,183,833.54/x
  3. Step 3: Cross multiply
    145,264,782.12x = 200,463,768.72 × 79,183,833.54
  4. Step 4: Simplify right side
    145,264,782.12x = 15,873,489,693,125,540
  5. Step 5: Solve for x
    x = 15,873,489,693,125,540/145,264,782.12
  6. Step 6: Final answer
    x = 109,272,801.44

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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.