Home / 28,067,345.20-42,101,017.80-18,979,704.10

Finding the Fourth Proportional to 28,067,345.20, 42,101,017.80 and 18,979,704.10

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Solution

The fourth proportional to 28,067,345.20, 42,101,017.80 and 18,979,704.10 is: 28,469,556.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,067,345.20 : 42,101,017.80 = 18,979,704.10 : x
  2. Step 2: Convert to fraction form
    28,067,345.20/42,101,017.80 = 18,979,704.10/x
  3. Step 3: Cross multiply
    28,067,345.20x = 42,101,017.80 × 18,979,704.10
  4. Step 4: Simplify right side
    28,067,345.20x = 799,064,860,152,833
  5. Step 5: Solve for x
    x = 799,064,860,152,833/28,067,345.20
  6. Step 6: Final answer
    x = 28,469,556.15

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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.