Home / 28,067,435.20-42,101,152.80-18,979,794.10

Finding the Fourth Proportional to 28,067,435.20, 42,101,152.80 and 18,979,794.10

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Solution

The fourth proportional to 28,067,435.20, 42,101,152.80 and 18,979,794.10 is: 28,469,691.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,067,435.20 : 42,101,152.80 = 18,979,794.10 : x
  2. Step 2: Convert to fraction form
    28,067,435.20/42,101,152.80 = 18,979,794.10/x
  3. Step 3: Cross multiply
    28,067,435.20x = 42,101,152.80 × 18,979,794.10
  4. Step 4: Simplify right side
    28,067,435.20x = 799,071,211,516,638.50
  5. Step 5: Solve for x
    x = 799,071,211,516,638.50/28,067,435.20
  6. Step 6: Final answer
    x = 28,469,691.15

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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.