Home / 465,216,378.72-641,998,736.04-253,523,268.72

Finding the Fourth Proportional to 465,216,378.72, 641,998,736.04 and 253,523,268.72

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Solution

The fourth proportional to 465,216,378.72, 641,998,736.04 and 253,523,268.72 is: 349,862,183.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,216,378.72 : 641,998,736.04 = 253,523,268.72 : x
  2. Step 2: Convert to fraction form
    465,216,378.72/641,998,736.04 = 253,523,268.72/x
  3. Step 3: Cross multiply
    465,216,378.72x = 641,998,736.04 × 253,523,268.72
  4. Step 4: Simplify right side
    465,216,378.72x = 162,761,618,078,327,488
  5. Step 5: Solve for x
    x = 162,761,618,078,327,488/465,216,378.72
  6. Step 6: Final answer
    x = 349,862,183.54

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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.