Home / 621,158,648.22-930,780,182.97-305,662,494.78

Finding the Fourth Proportional to 621,158,648.22, 930,780,182.97 and 305,662,494.78

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Solution

The fourth proportional to 621,158,648.22, 930,780,182.97 and 305,662,494.78 is: 458,022,428.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,158,648.22 : 930,780,182.97 = 305,662,494.78 : x
  2. Step 2: Convert to fraction form
    621,158,648.22/930,780,182.97 = 305,662,494.78/x
  3. Step 3: Cross multiply
    621,158,648.22x = 930,780,182.97 × 305,662,494.78
  4. Step 4: Simplify right side
    621,158,648.22x = 284,504,592,818,395,040
  5. Step 5: Solve for x
    x = 284,504,592,818,395,040/621,158,648.22
  6. Step 6: Final answer
    x = 458,022,428.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.