Home / 28,396,987.20-42,595,480.80-17,647,444.80

Finding the Fourth Proportional to 28,396,987.20, 42,595,480.80 and 17,647,444.80

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Solution

The fourth proportional to 28,396,987.20, 42,595,480.80 and 17,647,444.80 is: 26,471,167.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,396,987.20 : 42,595,480.80 = 17,647,444.80 : x
  2. Step 2: Convert to fraction form
    28,396,987.20/42,595,480.80 = 17,647,444.80/x
  3. Step 3: Cross multiply
    28,396,987.20x = 42,595,480.80 × 17,647,444.80
  4. Step 4: Simplify right side
    28,396,987.20x = 751,701,396,147,459.88
  5. Step 5: Solve for x
    x = 751,701,396,147,459.88/28,396,987.20
  6. Step 6: Final answer
    x = 26,471,167.20

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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.