Home / 84,248,067-126,372,100.50-20,422,659

Finding the Fourth Proportional to 84,248,067, 126,372,100.50 and 20,422,659

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Solution

The fourth proportional to 84,248,067, 126,372,100.50 and 20,422,659 is: 30,633,988.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,248,067 : 126,372,100.50 = 20,422,659 : x
  2. Step 2: Convert to fraction form
    84,248,067/126,372,100.50 = 20,422,659/x
  3. Step 3: Cross multiply
    84,248,067x = 126,372,100.50 × 20,422,659
  4. Step 4: Simplify right side
    84,248,067x = 2,580,854,315,625,229.50
  5. Step 5: Solve for x
    x = 2,580,854,315,625,229.50/84,248,067
  6. Step 6: Final answer
    x = 30,633,988.50

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1.5x scale

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.